| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2017-09-09 06:14:17 UTC |
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| Update Date | 2022-11-30 19:26:22 UTC |
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| HMDB ID | HMDB0115845 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | PA(i-20:0/a-17:0) |
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| Description | PA(i-20:0/a-17:0) is a phosphatidic acid. It is a glycerophospholipid in which a phosphate moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidic acids can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. Fatty acids containing 16, 18 and 20 carbons are the most common. PA(i-20:0/a-17:0), in particular, consists of one chain of isoeicosanoic acid at the C-1 position and one chain of anteisoheptadecanoic acid at the C-2 position. Phosphatidic acids are quite rare but are extremely important as intermediates in the biosynthesis of triacylglycerols and phospholipids. |
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| Structure | [H][C@@](COC(=O)CCCCCCCCCCCCCCCCC(C)C)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCC(C)CC InChI=1S/C40H79O8P/c1-5-37(4)31-27-23-19-15-12-13-17-21-25-29-33-40(42)48-38(35-47-49(43,44)45)34-46-39(41)32-28-24-20-16-11-9-7-6-8-10-14-18-22-26-30-36(2)3/h36-38H,5-35H2,1-4H3,(H2,43,44,45)/t37?,38-/m1/s1 |
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| Synonyms | | Value | Source |
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| 1-Isoeicosanoyl-2-anteisoheptadecanoyl-sn-glycero-3-phosphate | HMDB | | 1-Isoeicosanoyl-2-anteisoheptadecanoyl-sn-phosphatidic acid | HMDB | | PA(37:0) | HMDB | | Phosphatidic acid(i-20:0/a-17:0) | HMDB | | Phosphatidic acid(37:0) | HMDB | | Phosphatidate(I-20:0/A-17:0) | HMDB | | Phosphatidate(37:0) | HMDB | | [(2R)-2-[(14-Methylhexadecanoyl)oxy]-3-[(18-methylnonadecanoyl)oxy]propoxy]phosphonate | HMDB | | PA(i-20:0/a-17:0) | SMPDB |
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| Chemical Formula | C40H79O8P |
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| Average Molecular Weight | 719.038 |
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| Monoisotopic Molecular Weight | 718.551256502 |
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| IUPAC Name | [(2R)-2-[(14-methylhexadecanoyl)oxy]-3-[(18-methylnonadecanoyl)oxy]propoxy]phosphonic acid |
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| Traditional Name | (2R)-2-[(14-methylhexadecanoyl)oxy]-3-[(18-methylnonadecanoyl)oxy]propoxyphosphonic acid |
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| CAS Registry Number | Not Available |
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| SMILES | [H][C@@](COC(=O)CCCCCCCCCCCCCCCCC(C)C)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCC(C)CC |
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| InChI Identifier | InChI=1S/C40H79O8P/c1-5-37(4)31-27-23-19-15-12-13-17-21-25-29-33-40(42)48-38(35-47-49(43,44)45)34-46-39(41)32-28-24-20-16-11-9-7-6-8-10-14-18-22-26-30-36(2)3/h36-38H,5-35H2,1-4H3,(H2,43,44,45)/t37?,38-/m1/s1 |
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| InChI Key | NUNVXJMETLPYOO-YWIOZPJLSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as 1,2-diacylglycerol-3-phosphates. These are glycerol-3-phosphates in which the glycerol moiety is bonded to two aliphatic chains through ester linkages. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Glycerophospholipids |
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| Sub Class | Glycerophosphates |
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| Direct Parent | 1,2-diacylglycerol-3-phosphates |
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| Alternative Parents | |
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| Substituents | - 1,2-diacylglycerol-3-phosphate
- Fatty acid ester
- Monoalkyl phosphate
- Dicarboxylic acid or derivatives
- Fatty acyl
- Alkyl phosphate
- Phosphoric acid ester
- Organic phosphoric acid derivative
- Carboxylic acid ester
- Carboxylic acid derivative
- Hydrocarbon derivative
- Organic oxide
- Organic oxygen compound
- Carbonyl group
- Organooxygen compound
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic 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 | Not Available |
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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 | 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 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. | 10.22 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 36.2918 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.25 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 5157.9 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 702.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 391.0 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 263.7 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1023.1 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1855.9 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 | 1651.3 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 141.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 3518.5 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 1135.6 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 | 3010.0 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1339.3 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 753.5 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 708.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 809.7 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 | 9.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| PA(i-20:0/a-17:0),1TMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C | 4945.8 | Semi standard non polar | 33892256 | | PA(i-20:0/a-17:0),1TMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C | 4284.5 | Standard non polar | 33892256 | | PA(i-20:0/a-17:0),1TMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C | 5807.2 | Standard polar | 33892256 | | PA(i-20:0/a-17:0),2TMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C | 4932.5 | Semi standard non polar | 33892256 | | PA(i-20:0/a-17:0),2TMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C | 4292.4 | Standard non polar | 33892256 | | PA(i-20:0/a-17:0),2TMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C | 5121.2 | Standard polar | 33892256 | | PA(i-20:0/a-17:0),1TBDMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 5163.6 | Semi standard non polar | 33892256 | | PA(i-20:0/a-17:0),1TBDMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 4410.3 | Standard non polar | 33892256 | | PA(i-20:0/a-17:0),1TBDMS,isomer #1 | CCC(C)CCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 5773.9 | Standard polar | 33892256 |
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| 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 - PA(i-20:0/a-17:0) 10V, Positive-QTOF | splash10-0fr2-1091502400-31a20b4ea49c2f433d04 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 20V, Positive-QTOF | splash10-0f6t-3192201000-66c1da7567e4121fcf4c | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 40V, Positive-QTOF | splash10-1000-3194012000-d04d0188e1df8e72f995 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 10V, Negative-QTOF | splash10-02tc-5095400300-2d9dac75b1b38ccf1d86 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 20V, Negative-QTOF | splash10-004i-9032000000-cf4729a3f53834443006 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 40V, Negative-QTOF | splash10-004i-9000000000-886eed60cffa3e6d8a92 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 10V, Positive-QTOF | splash10-0uxr-0000000900-ad15be9ac5212f7f3e43 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 20V, Positive-QTOF | splash10-01b9-0000005900-adc31a7b39677df8d104 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 40V, Positive-QTOF | splash10-05fs-0000906200-4d902a51c0afd4098fce | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 10V, Positive-QTOF | splash10-0006-0000000900-1d63072fca90e22ecc74 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 20V, Positive-QTOF | splash10-0006-0000009900-5e8042c746f2460b251a | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 40V, Positive-QTOF | splash10-0096-0000902300-fe666973047ea1c9a594 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 10V, Negative-QTOF | splash10-014i-0000000900-9f31223c8463ad3497a2 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 20V, Negative-QTOF | splash10-014j-0033900400-9e7a95f39ee96b89144d | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-20:0/a-17:0) 40V, Negative-QTOF | splash10-02t9-1169600100-beac0ec0986c00d0b35e | 2021-09-22 | Wishart Lab | View Spectrum |
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