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 05:37:05 UTC |
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Update Date | 2022-11-30 19:26:19 UTC |
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HMDB ID | HMDB0115724 |
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Secondary Accession Numbers | None |
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Metabolite Identification |
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Common Name | PA(a-21:0/20:0) |
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Description | PA(a-21:0/20:0) 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-21:0/20:0), in particular, consists of one chain of anteisoheneicosanoic acid at the C-1 position and one chain of arachidic 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)CC)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCCCCCC InChI=1S/C44H87O8P/c1-4-6-7-8-9-10-11-12-13-14-15-20-23-26-29-32-35-38-44(46)52-42(40-51-53(47,48)49)39-50-43(45)37-34-31-28-25-22-19-17-16-18-21-24-27-30-33-36-41(3)5-2/h41-42H,4-40H2,1-3H3,(H2,47,48,49)/t41?,42-/m1/s1 |
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Synonyms | Value | Source |
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1-Anteisoheneicosanoyl-2-arachidoyl-sn-glycero-3-phosphate | HMDB | 1-Anteisoheneicosanoyl-2-arachidoyl-sn-phosphatidic acid | HMDB | PA(41:0) | HMDB | Phosphatidic acid(a-21:0/20:0) | HMDB | Phosphatidic acid(41:0) | HMDB | Phosphatidate(A-21:0/20:0) | HMDB | Phosphatidate(41:0) | HMDB | [(2R)-2-(Icosanoyloxy)-3-[(18-methylicosanoyl)oxy]propoxy]phosphonate | HMDB | PA(a-21:0/20:0) | SMPDB |
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Chemical Formula | C44H87O8P |
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Average Molecular Weight | 775.146 |
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Monoisotopic Molecular Weight | 774.613856759 |
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IUPAC Name | [(2R)-2-(icosanoyloxy)-3-[(18-methylicosanoyl)oxy]propoxy]phosphonic acid |
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Traditional Name | (2R)-2-(icosanoyloxy)-3-[(18-methylicosanoyl)oxy]propoxyphosphonic acid |
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CAS Registry Number | Not Available |
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SMILES | [H][C@@](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCCCCCC |
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InChI Identifier | InChI=1S/C44H87O8P/c1-4-6-7-8-9-10-11-12-13-14-15-20-23-26-29-32-35-38-44(46)52-42(40-51-53(47,48)49)39-50-43(45)37-34-31-28-25-22-19-17-16-18-21-24-27-30-33-36-41(3)5-2/h41-42H,4-40H2,1-3H3,(H2,47,48,49)/t41?,42-/m1/s1 |
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InChI Key | PLKQLSZNFUYHEF-FBUHDGFBSA-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 Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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PA(a-21:0/20:0),1TMS,isomer #1 | CCCCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C | 5397.2 | Semi standard non polar | 33892256 | PA(a-21:0/20:0),1TMS,isomer #1 | CCCCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C | 4689.7 | Standard non polar | 33892256 | PA(a-21:0/20:0),1TMS,isomer #1 | CCCCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C | 6308.3 | Standard polar | 33892256 | PA(a-21:0/20:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 5649.4 | Semi standard non polar | 33892256 | PA(a-21:0/20:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 4809.1 | Standard non polar | 33892256 | PA(a-21:0/20:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 6258.0 | Standard polar | 33892256 |
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| MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 10V, Positive-QTOF | splash10-06tb-2179702600-cfe5a15d84aa8529afe0 | 2019-02-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 20V, Positive-QTOF | splash10-0002-3295301100-324c70e7e30b4a3fb3f4 | 2019-02-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 40V, Positive-QTOF | splash10-0gc1-2295001000-8e7eba4f9517831e2de9 | 2019-02-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 10V, Negative-QTOF | splash10-004i-3009300200-067076ce425a640d4cd2 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 20V, Negative-QTOF | splash10-004i-9015000000-9737202fdc8b8ec44a0d | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 40V, Negative-QTOF | splash10-004i-9000000000-1336b66d6c8db572bf5e | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 10V, Negative-QTOF | splash10-00di-0000000900-02dc5b3cf396b5aa7b14 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 20V, Negative-QTOF | splash10-03mi-0006900400-b819acdc4cbf3c0af9e9 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 40V, Negative-QTOF | splash10-01t9-0009300000-d33628a7aad23bece059 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 10V, Positive-QTOF | splash10-0a6r-0000000900-9bdd887dca6037bdc403 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 20V, Positive-QTOF | splash10-004i-0000005900-4e3066a659b7b8e910ad | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 40V, Positive-QTOF | splash10-01ta-0000906200-ea825d4385f29decd29a | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 10V, Positive-QTOF | splash10-0002-0000000900-59b73e7131dd061f227c | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 20V, Positive-QTOF | splash10-0002-0000009900-101a6d0d1696f8bd7905 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/20:0) 40V, Positive-QTOF | splash10-0072-0000922400-62c4a862ec2f47a018bc | 2021-09-22 | Wishart Lab | View Spectrum |
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