| 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 05:34:56 UTC |
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| Update Date | 2022-11-30 19:26:19 UTC |
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| HMDB ID | HMDB0115709 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | PA(a-13:0/i-18:0) |
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| Description | PA(a-13:0/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(a-13:0/i-18:0), in particular, consists of one chain of anteisotridecanoic 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)CCCCCCCCC(C)CC)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCC(C)C InChI=1S/C34H67O8P/c1-5-31(4)25-21-17-14-15-18-22-26-33(35)40-28-32(29-41-43(37,38)39)42-34(36)27-23-19-13-11-9-7-6-8-10-12-16-20-24-30(2)3/h30-32H,5-29H2,1-4H3,(H2,37,38,39)/t31?,32-/m1/s1 |
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| Synonyms | | Value | Source |
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| 1-Anteisotridecanoyl-2-isooctadecanoyl-sn-glycero-3-phosphate | HMDB | | 1-Anteisotridecanoyl-2-isooctadecanoyl-sn-phosphatidic acid | HMDB | | PA(31:0) | HMDB | | Phosphatidic acid(a-13:0/i-18:0) | HMDB | | Phosphatidic acid(31:0) | HMDB | | Phosphatidate(A-13:0/I-18:0) | HMDB | | Phosphatidate(31:0) | HMDB | | [(2R)-3-[(10-Methyldodecanoyl)oxy]-2-[(16-methylheptadecanoyl)oxy]propoxy]phosphonate | HMDB | | PA(a-13:0/i-18:0) | SMPDB |
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| Chemical Formula | C34H67O8P |
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| Average Molecular Weight | 634.876 |
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| Monoisotopic Molecular Weight | 634.457356115 |
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| IUPAC Name | [(2R)-3-[(10-methyldodecanoyl)oxy]-2-[(16-methylheptadecanoyl)oxy]propoxy]phosphonic acid |
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| Traditional Name | (2R)-3-[(10-methyldodecanoyl)oxy]-2-[(16-methylheptadecanoyl)oxy]propoxyphosphonic acid |
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| CAS Registry Number | Not Available |
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| SMILES | [H][C@@](COC(=O)CCCCCCCCC(C)CC)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCC(C)C |
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| InChI Identifier | InChI=1S/C34H67O8P/c1-5-31(4)25-21-17-14-15-18-22-26-33(35)40-28-32(29-41-43(37,38)39)42-34(36)27-23-19-13-11-9-7-6-8-10-12-16-20-24-30(2)3/h30-32H,5-29H2,1-4H3,(H2,37,38,39)/t31?,32-/m1/s1 |
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| InChI Key | SFDJYXVEGKSDCN-IADGFXSZSA-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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| Not Available | 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. | 10.89 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 29.4594 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.21 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 4411.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 514.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 325.1 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 204.2 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 870.3 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1555.8 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 | 1386.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 131.7 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 2839.8 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 990.0 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 | 2563.6 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1073.2 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 647.7 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 525.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 657.9 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 | 8.9 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| PA(a-13:0/i-18:0),1TMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4343.5 | Semi standard non polar | 33892256 | | PA(a-13:0/i-18:0),1TMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3792.3 | Standard non polar | 33892256 | | PA(a-13:0/i-18:0),1TMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 5242.4 | Standard polar | 33892256 | | PA(a-13:0/i-18:0),2TMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4345.6 | Semi standard non polar | 33892256 | | PA(a-13:0/i-18:0),2TMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3805.5 | Standard non polar | 33892256 | | PA(a-13:0/i-18:0),2TMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4579.7 | Standard polar | 33892256 | | PA(a-13:0/i-18:0),1TBDMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 4559.0 | Semi standard non polar | 33892256 | | PA(a-13:0/i-18:0),1TBDMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 3929.0 | Standard non polar | 33892256 | | PA(a-13:0/i-18:0),1TBDMS,isomer #1 | CCC(C)CCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCCCCCCCC(C)C | 5234.5 | Standard polar | 33892256 | | PA(a-13:0/i-18:0),2TBDMS,isomer #1 | CCC(C)CCCCCCCCC(=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 | 4785.7 | Semi standard non polar | 33892256 | | PA(a-13:0/i-18:0),2TBDMS,isomer #1 | CCC(C)CCCCCCCCC(=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 | 4036.2 | Standard non polar | 33892256 | | PA(a-13:0/i-18:0),2TBDMS,isomer #1 | CCC(C)CCCCCCCCC(=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 | 4675.5 | 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(a-13:0/i-18:0) 10V, Positive-QTOF | splash10-00ks-2695236000-974bc9920b201e7c3eb1 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 20V, Positive-QTOF | splash10-00kb-6983120000-0e4d97012052ed9c4aae | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 40V, Positive-QTOF | splash10-0aor-5791040000-3d276f1cee4aeba17a90 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 10V, Negative-QTOF | splash10-01pk-5493103000-37b658a10cc463ef5e24 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 20V, Negative-QTOF | splash10-004j-9230000000-17ada3feaaba4d185c3b | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 40V, Negative-QTOF | splash10-004i-9000000000-a1438568a633826752ac | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 10V, Positive-QTOF | splash10-0a4i-0000009000-60bd2cb67be440cfd789 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 20V, Positive-QTOF | splash10-0a4i-0000099000-f6376d157ad6b453ba04 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 40V, Positive-QTOF | splash10-0abc-0009946000-5a76ec2fa0e064fd7c49 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 10V, Negative-QTOF | splash10-001i-0000009000-7bf6317e2e610d98297f | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 20V, Negative-QTOF | splash10-00ls-1197506000-2efc67582668d6475cb4 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 40V, Negative-QTOF | splash10-03e9-0091100000-1b77610e24ea446367f8 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 10V, Positive-QTOF | splash10-014r-0000009000-7297669e99ef47b3d4d1 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 20V, Positive-QTOF | splash10-000i-0000059000-62f53c9f6eaa82da04ce | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-13:0/i-18:0) 40V, Positive-QTOF | splash10-0fe0-0006693000-3705835c43e896896042 | 2021-09-25 | Wishart Lab | View Spectrum |
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