| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2021-09-11 11:25:42 UTC |
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| Update Date | 2022-11-23 22:11:27 UTC |
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| HMDB ID | HMDB0253201 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | Homocamptothecin |
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| Description | Homocamptothecin, also known as HCPT, belongs to the class of organic compounds known as quinolines and derivatives. Quinolines and derivatives are compounds containing a quinoline moiety, which consists of a benzene ring fused to a pyrimidine ring to form benzo[b]azabenzene. Based on a literature review a significant number of articles have been published on Homocamptothecin. This compound has been identified in human blood as reported by (PMID: 31557052 ). Homocamptothecin is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Homocamptothecin is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. |
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| Structure | CCC1(O)CC(=O)OCC2=C1C=C1N(CC3=CC4=CC=CC=C4N=C13)C2=O InChI=1S/C21H18N2O4/c1-2-21(26)9-18(24)27-11-14-15(21)8-17-19-13(10-23(17)20(14)25)7-12-5-3-4-6-16(12)22-19/h3-8,26H,2,9-11H2,1H3 |
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| Synonyms | |
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| Chemical Formula | C21H18N2O4 |
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| Average Molecular Weight | 362.385 |
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| Monoisotopic Molecular Weight | 362.126657068 |
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| IUPAC Name | 20-ethyl-20-hydroxy-17-oxa-3,13-diazapentacyclo[11.9.0.0^{2,11}.0^{4,9}.0^{15,21}]docosa-1(22),2,4,6,8,10,15(21)-heptaene-14,18-dione |
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| Traditional Name | 20-ethyl-20-hydroxy-17-oxa-3,13-diazapentacyclo[11.9.0.0^{2,11}.0^{4,9}.0^{15,21}]docosa-1(22),2,4,6,8,10,15(21)-heptaene-14,18-dione |
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| CAS Registry Number | Not Available |
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| SMILES | CCC1(O)CC(=O)OCC2=C1C=C1N(CC3=CC4=CC=CC=C4N=C13)C2=O |
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| InChI Identifier | InChI=1S/C21H18N2O4/c1-2-21(26)9-18(24)27-11-14-15(21)8-17-19-13(10-23(17)20(14)25)7-12-5-3-4-6-16(12)22-19/h3-8,26H,2,9-11H2,1H3 |
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| InChI Key | PAEZRCINULFAGO-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as quinolines and derivatives. Quinolines and derivatives are compounds containing a quinoline moiety, which consists of a benzene ring fused to a pyrimidine ring to form benzo[b]azabenzene. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Quinolines and derivatives |
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| Sub Class | Not Available |
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| Direct Parent | Quinolines and derivatives |
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| Alternative Parents | |
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| Substituents | - Quinoline
- Pyridinone
- Pyridine
- Benzenoid
- Tertiary alcohol
- Heteroaromatic compound
- Carboxylic acid ester
- Lactam
- Lactone
- Monocarboxylic acid or derivatives
- Carboxylic acid derivative
- Oxacycle
- Azacycle
- Organic oxide
- Organic oxygen compound
- Organic nitrogen compound
- Organooxygen compound
- Organonitrogen compound
- Carbonyl group
- Alcohol
- Hydrocarbon derivative
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic 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 | Not Available |
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| Role | Not Available |
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| Physical Properties |
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| State | Not Available |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | Not Available | 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 Sections| Predictor | Adduct Type | CCS Value (Å2) | Reference |
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| DeepCCS | [M-2H]- | 220.113 | 30932474 | | DeepCCS | [M+Na]+ | 195.341 | 30932474 |
Predicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Predicted by Siyang on May 30, 2022 | 12.4524 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.91 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2404.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 267.8 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 164.7 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 173.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 180.8 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 495.1 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 | 574.1 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 74.6 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 976.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 477.0 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 | 1520.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 308.0 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 328.3 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 234.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 204.4 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 | 32.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - Homocamptothecin GC-MS (Non-derivatized) - 70eV, Positive | splash10-0ikc-1095000000-0452e7539f632e822a00 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Homocamptothecin GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Homocamptothecin GC-MS (TMS_1_1) - 70eV, Positive | Not Available | 2021-11-04 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Homocamptothecin GC-MS (TBDMS_1_1) - 70eV, Positive | Not Available | 2021-11-04 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Homocamptothecin 10V, Positive-QTOF | splash10-03dj-0009000000-f6233da986197d9819f0 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Homocamptothecin 20V, Positive-QTOF | splash10-03dj-0009000000-baf26f521778c1e59f52 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Homocamptothecin 40V, Positive-QTOF | splash10-0002-2179000000-cd99f1b9f65741b88203 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Homocamptothecin 10V, Negative-QTOF | splash10-03di-0009000000-384937f73093dab526a6 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Homocamptothecin 20V, Negative-QTOF | splash10-03xr-0019000000-5b85247aac0c8c5bb3d6 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Homocamptothecin 40V, Negative-QTOF | splash10-00kb-3369000000-26156ce187fb4eede728 | 2021-10-12 | Wishart Lab | View Spectrum |
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