| 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 05:31:56 UTC |
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| Update Date | 2022-11-30 19:26:18 UTC |
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| HMDB ID | HMDB0115691 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | PA(8:0/i-18:0) |
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| Description | PA(8:0/i-18:0) 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(8:0/i-18:0), in particular, consists of one chain of caprylic acid at the C-1 position and one chain of isooctadecanoic 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)CCCCCCC)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCC(C)C InChI=1S/C29H57O8P/c1-4-5-6-15-19-22-28(30)35-24-27(25-36-38(32,33)34)37-29(31)23-20-17-14-12-10-8-7-9-11-13-16-18-21-26(2)3/h26-27H,4-25H2,1-3H3,(H2,32,33,34)/t27-/m1/s1 |
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| Synonyms | | Value | Source |
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| 1-Capryloyl-2-isooctadecanoyl-sn-glycero-3-phosphate | HMDB | | 1-Capryloyl-2-isooctadecanoyl-sn-phosphatidic acid | HMDB | | PA(26:0) | HMDB | | Phosphatidic acid(8:0/i-18:0) | HMDB | | Phosphatidic acid(26:0) | HMDB | | Phosphatidate(8:0/I-18:0) | HMDB | | Phosphatidate(26:0) | HMDB | | [(2R)-2-[(16-Methylheptadecanoyl)oxy]-3-(octanoyloxy)propoxy]phosphonate | HMDB | | PA(8:0/i-18:0) | SMPDB |
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| Chemical Formula | C29H57O8P |
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| Average Molecular Weight | 564.741 |
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| Monoisotopic Molecular Weight | 564.379105793 |
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| IUPAC Name | [(2R)-2-[(16-methylheptadecanoyl)oxy]-3-(octanoyloxy)propoxy]phosphonic acid |
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| Traditional Name | (2R)-2-[(16-methylheptadecanoyl)oxy]-3-(octanoyloxy)propoxyphosphonic acid |
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| CAS Registry Number | Not Available |
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| SMILES | [H][C@@](COC(=O)CCCCCCC)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCC(C)C |
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| InChI Identifier | InChI=1S/C29H57O8P/c1-4-5-6-15-19-22-28(30)35-24-27(25-36-38(32,33)34)37-29(31)23-20-17-14-12-10-8-7-9-11-13-16-18-21-26(2)3/h26-27H,4-25H2,1-3H3,(H2,32,33,34)/t27-/m1/s1 |
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| InChI Key | BSAKGEHYFQPYOS-HHHXNRCGSA-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. | 10.88 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 23.6443 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.3 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 3860.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 334.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 278.3 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 182.2 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 742.8 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1253.3 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 | 1161.9 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 172.3 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 2340.7 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 842.5 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 | 2168.5 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 890.2 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 551.7 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 455.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 533.7 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(8:0/i-18:0),1TMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3865.9 | Semi standard non polar | 33892256 | | PA(8:0/i-18:0),1TMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3476.7 | Standard non polar | 33892256 | | PA(8:0/i-18:0),1TMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4866.7 | Standard polar | 33892256 | | PA(8:0/i-18:0),2TMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3874.7 | Semi standard non polar | 33892256 | | PA(8:0/i-18:0),2TMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3513.9 | Standard non polar | 33892256 | | PA(8:0/i-18:0),2TMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4224.0 | Standard polar | 33892256 | | PA(8:0/i-18:0),1TBDMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4092.8 | Semi standard non polar | 33892256 | | PA(8:0/i-18:0),1TBDMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3616.6 | Standard non polar | 33892256 | | PA(8:0/i-18:0),1TBDMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4897.7 | Standard polar | 33892256 | | PA(8:0/i-18:0),2TBDMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4351.5 | Semi standard non polar | 33892256 | | PA(8:0/i-18:0),2TBDMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3737.9 | Standard non polar | 33892256 | | PA(8:0/i-18:0),2TBDMS,isomer #1 | CCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4332.3 | 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(8:0/i-18:0) 10V, Positive-QTOF | splash10-014i-2590350000-7df02d8af59d2c3852ad | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 20V, Positive-QTOF | splash10-00mt-7590210000-e7c58e1abc84aa21dc3f | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 40V, Positive-QTOF | splash10-0f9i-9370200000-44e414b517a05ebaf1c1 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 10V, Negative-QTOF | splash10-004l-4960030000-0b435f3f10459512a53c | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 20V, Negative-QTOF | splash10-004i-9410000000-36e6d1545aa9da1b55ff | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 40V, Negative-QTOF | splash10-004i-9000000000-75cb5905bdefa64c6d61 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 10V, Positive-QTOF | splash10-00kb-0000090000-bf2f2ce60c522b054af1 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 20V, Positive-QTOF | splash10-014i-0000590000-e1fe6a3f6705500636d8 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 40V, Positive-QTOF | splash10-01c0-0030910000-e1aa6c041ad9e1689f3f | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 10V, Positive-QTOF | splash10-000i-0000090000-dfde8218ea580f1bd574 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 20V, Positive-QTOF | splash10-000i-0000990000-14005447ee4ff3dd7fa6 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 40V, Positive-QTOF | splash10-0f7c-0006940000-340f2c9bfb57658757a8 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 10V, Negative-QTOF | splash10-03di-0000090000-0fd894cbec08e1468612 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 20V, Negative-QTOF | splash10-02ec-0490440000-892ec5cad3b7a026b3c1 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(8:0/i-18:0) 40V, Negative-QTOF | splash10-000x-1970210000-830dddfb488bdb856eff | 2021-09-24 | Wishart Lab | View Spectrum |
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