| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-11 19:35:46 UTC |
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| Update Date | 2022-03-07 02:54:12 UTC |
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| HMDB ID | HMDB0034695 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Cucurbitacin D |
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| Description | Cucurbitacin D, also known as elatericin a, belongs to the class of organic compounds known as cucurbitacins. These are polycyclic compounds containing the tetracyclic cucurbitane nucleus skeleton, 19-(10->9b)-abeo-10alanost-5-ene (also known as 9b-methyl-19-nor lanosta-5-ene), with a variety of oxygenation functionalities at different positions. Based on a literature review a significant number of articles have been published on Cucurbitacin D. |
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| Structure | CC(C)(O)\C=C\C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C InChI=1S/C30H44O7/c1-25(2,36)12-11-21(33)30(8,37)23-19(32)14-27(5)20-10-9-16-17(13-18(31)24(35)26(16,3)4)29(20,7)22(34)15-28(23,27)6/h9,11-12,17-20,23,31-32,36-37H,10,13-15H2,1-8H3/b12-11+ |
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| Synonyms | | Value | Source |
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| Cucurbitacine (D) | HMDB | | Elatericin a | HMDB | | Elatericine a | HMDB | | 23,24-Dihydro-cucurbitacin D | HMDB | | Cucurbitacin D | MeSH |
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| Chemical Formula | C30H44O7 |
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| Average Molecular Weight | 516.6662 |
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| Monoisotopic Molecular Weight | 516.308703762 |
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| IUPAC Name | 14-[(4E)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-4,13-dihydroxy-1,6,6,11,15-pentamethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-ene-5,17-dione |
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| Traditional Name | 14-[(4E)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-4,13-dihydroxy-1,6,6,11,15-pentamethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-ene-5,17-dione |
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| CAS Registry Number | 3877-86-9 |
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| SMILES | CC(C)(O)\C=C\C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C |
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| InChI Identifier | InChI=1S/C30H44O7/c1-25(2,36)12-11-21(33)30(8,37)23-19(32)14-27(5)20-10-9-16-17(13-18(31)24(35)26(16,3)4)29(20,7)22(34)15-28(23,27)6/h9,11-12,17-20,23,31-32,36-37H,10,13-15H2,1-8H3/b12-11+ |
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| InChI Key | SRPHMISUTWFFKJ-VAWYXSNFSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as cucurbitacins. These are polycyclic compounds containing the tetracyclic cucurbitane nucleus skeleton, 19-(10->9b)-abeo-10alanost-5-ene (also known as 9b-methyl-19-nor lanosta-5-ene), with a variety of oxygenation functionalities at different positions. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Steroids and steroid derivatives |
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| Sub Class | Cucurbitacins |
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| Direct Parent | Cucurbitacins |
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| Alternative Parents | |
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| Substituents | - Cucurbitacin skeleton
- Triterpenoid
- 25-hydroxysteroid
- 22-oxosteroid
- 21-oxosteroid
- 20-hydroxysteroid
- 3-oxo-delta-5-steroid
- 2-hydroxysteroid
- 3-oxosteroid
- Hydroxysteroid
- 11-oxosteroid
- Oxosteroid
- 16-hydroxysteroid
- Delta-5-steroid
- Acyloin
- Acryloyl-group
- Alpha,beta-unsaturated ketone
- Enone
- Alpha-hydroxy ketone
- Tertiary alcohol
- Cyclic alcohol
- Cyclic ketone
- Secondary alcohol
- Ketone
- Organic oxide
- Alcohol
- Organic oxygen compound
- Carbonyl group
- Organooxygen compound
- Hydrocarbon derivative
- Aliphatic homopolycyclic compound
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| Molecular Framework | Aliphatic homopolycyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | |
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| Role | |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | 151 - 152 °C | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 6.38 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 12.1704 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.44 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2776.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 155.1 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 192.4 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 150.1 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 99.1 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 506.4 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 540.0 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 89.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 898.7 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 448.6 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1380.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 324.9 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 351.5 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 182.2 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 155.3 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 8.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Cucurbitacin D,1TMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 4219.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TMS,isomer #2 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4085.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TMS,isomer #3 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4067.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TMS,isomer #4 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4055.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TMS,isomer #5 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3909.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TMS,isomer #6 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3931.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 4169.3 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #10 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 3908.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #11 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3784.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #12 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3752.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #13 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3798.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #14 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3756.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #15 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3654.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #2 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 4131.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #3 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 4127.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #4 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 4006.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #5 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3985.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #6 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4006.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #7 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 3972.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #8 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3862.3 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TMS,isomer #9 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3826.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 4057.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #10 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3711.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #11 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 3838.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #12 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3746.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #13 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3697.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #14 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3730.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #15 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3672.6 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #16 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3580.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #17 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3673.3 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #18 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3623.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #19 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3537.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #2 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 4028.6 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #20 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3535.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #3 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3943.6 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #4 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3889.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #5 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3962.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #6 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3861.6 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #7 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3823.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #8 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3879.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TMS,isomer #9 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3810.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3893.6 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #10 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3614.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #11 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 3645.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #12 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3582.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #13 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3498.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #14 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3490.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #15 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3457.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #2 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3805.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #3 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3773.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #4 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3817.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #5 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3744.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #6 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3659.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #7 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3754.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #8 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3702.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,4TMS,isomer #9 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3607.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3717.6 | Semi standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C | 3910.7 | Standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #2 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3646.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #2 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3792.4 | Standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #3 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3574.6 | Semi standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #3 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3714.6 | Standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #4 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3558.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #4 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3782.7 | Standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #5 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3524.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #5 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C)O[Si](C)(C)C | 3727.8 | Standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #6 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3431.3 | Semi standard non polar | 33892256 | | Cucurbitacin D,5TMS,isomer #6 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C)C1C(O[Si](C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C)=CC12C | 3720.5 | Standard non polar | 33892256 | | Cucurbitacin D,1TBDMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4462.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TBDMS,isomer #2 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4337.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TBDMS,isomer #3 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4316.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TBDMS,isomer #4 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4289.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TBDMS,isomer #5 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 4179.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,1TBDMS,isomer #6 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4189.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4645.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #10 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4363.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #11 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 4284.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #12 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4264.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #13 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 4280.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #14 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4223.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #15 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4150.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #2 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4614.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #3 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4566.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #4 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4487.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #5 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C)O[Si](C)(C)C(C)(C)C | 4475.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #6 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4486.5 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #7 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4422.3 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #8 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 4349.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,2TBDMS,isomer #9 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4319.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #1 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4770.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #10 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C)O[Si](C)(C)C(C)(C)C | 4432.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #11 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C | 4520.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #12 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 4463.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #13 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4420.2 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #14 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 4424.9 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #15 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4363.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #16 | CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4289.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #17 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C | 4363.8 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #18 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4299.7 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #19 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4223.0 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #2 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4696.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #20 | CC(C)(O)/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C | 4193.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #3 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4640.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #4 | CC(C)(/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C)O[Si](C)(C)C(C)(C)C | 4611.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #5 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4651.1 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #6 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4582.3 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #7 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C)O[Si](C)(C)C(C)(C)C | 4554.4 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #8 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C4(C)C)C3(C)C(=O)CC12C)O[Si](C)(C)C(C)(C)C | 4569.3 | Semi standard non polar | 33892256 | | Cucurbitacin D,3TBDMS,isomer #9 | CC(C)(/C=C/C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(O[Si](C)(C)C(C)(C)C)=CC12C)O[Si](C)(C)C(C)(C)C | 4504.3 | Semi standard non polar | 33892256 |
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