| 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 05:36:09 UTC |
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| Update Date | 2022-11-30 19:26:19 UTC |
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| HMDB ID | HMDB0115718 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | PA(a-21:0/14:0) |
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| Description | PA(a-21:0/14:0) 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-21:0/14:0), in particular, consists of one chain of anteisoheneicosanoic acid at the C-1 position and one chain of myristic 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)CCCCCCCCCCCCC InChI=1S/C38H75O8P/c1-4-6-7-8-9-10-15-20-23-26-29-32-38(40)46-36(34-45-47(41,42)43)33-44-37(39)31-28-25-22-19-17-14-12-11-13-16-18-21-24-27-30-35(3)5-2/h35-36H,4-34H2,1-3H3,(H2,41,42,43)/t35?,36-/m1/s1 |
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| Synonyms | | Value | Source |
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| 1-Anteisoheneicosanoyl-2-myristoyl-sn-glycero-3-phosphate | HMDB | | 1-Anteisoheneicosanoyl-2-myristoyl-sn-phosphatidic acid | HMDB | | PA(35:0) | HMDB | | Phosphatidic acid(a-21:0/14:0) | HMDB | | Phosphatidic acid(35:0) | HMDB | | Phosphatidate(A-21:0/14:0) | HMDB | | Phosphatidate(35:0) | HMDB | | [(2R)-3-[(18-Methylicosanoyl)oxy]-2-(tetradecanoyloxy)propoxy]phosphonate | HMDB | | PA(a-21:0/14:0) | SMPDB |
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| Chemical Formula | C38H75O8P |
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| Average Molecular Weight | 690.984 |
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| Monoisotopic Molecular Weight | 690.519956373 |
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| IUPAC Name | [(2R)-3-[(18-methylicosanoyl)oxy]-2-(tetradecanoyloxy)propoxy]phosphonic acid |
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| Traditional Name | (2R)-3-[(18-methylicosanoyl)oxy]-2-(tetradecanoyloxy)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)CCCCCCCCCCCCC |
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| InChI Identifier | InChI=1S/C38H75O8P/c1-4-6-7-8-9-10-15-20-23-26-29-32-38(40)46-36(34-45-47(41,42)43)33-44-37(39)31-28-25-22-19-17-14-12-11-13-16-18-21-24-27-30-35(3)5-2/h35-36H,4-34H2,1-3H3,(H2,41,42,43)/t35?,36-/m1/s1 |
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| InChI Key | QUIYWTMPUIIYMI-BEBVUIBBSA-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. | 10.53 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 34.106 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 | 4935.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 624.1 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 370.5 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 238.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 985.8 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1727.5 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 | 1568.7 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 178.3 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 3359.7 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 1075.3 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 | 2855.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1280.3 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 715.1 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 709.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 761.6 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 | 9.2 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| PA(a-21:0/14:0),1TMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C | 4775.9 | Semi standard non polar | 33892256 | | PA(a-21:0/14:0),1TMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C | 4187.0 | Standard non polar | 33892256 | | PA(a-21:0/14:0),1TMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C | 5758.8 | Standard polar | 33892256 | | PA(a-21:0/14:0),2TMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C | 4765.2 | Semi standard non polar | 33892256 | | PA(a-21:0/14:0),2TMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C | 4206.5 | Standard non polar | 33892256 | | PA(a-21:0/14:0),2TMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C | 5040.7 | Standard polar | 33892256 | | PA(a-21:0/14:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 5013.5 | Semi standard non polar | 33892256 | | PA(a-21:0/14:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 4315.5 | Standard non polar | 33892256 | | PA(a-21:0/14:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC(C)CC)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 5722.6 | Standard polar | 33892256 |
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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 - PA(a-21:0/14:0) GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | 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 - PA(a-21:0/14:0) 10V, Positive-QTOF | splash10-08fu-2379526000-e66bf87e9d4a9123fb52 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 20V, Positive-QTOF | splash10-07vj-6987212000-4f5c5823e8f692a82ab6 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 40V, Positive-QTOF | splash10-00lr-4956030000-b47c170152261797f8fa | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 10V, Negative-QTOF | splash10-004i-4039202000-871f5764186f95697fc2 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 20V, Negative-QTOF | splash10-004i-9014000000-60f98f8eaba039979264 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 40V, Negative-QTOF | splash10-004i-9000000000-467394cfa48fd3833ebe | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 10V, Positive-QTOF | splash10-00dl-0000009000-fe74d113dc27ecc6707e | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 20V, Positive-QTOF | splash10-0006-0000059000-aa583eb78935ba402cd4 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 40V, Positive-QTOF | splash10-0296-0006693000-d4b60ee4242f86d17ac8 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 10V, Positive-QTOF | splash10-03di-0000000900-111f38baecb5a57a693d | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 20V, Positive-QTOF | splash10-04i0-0000009900-14b608d66b52e97b2607 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 40V, Positive-QTOF | splash10-01p9-0005944600-42df09f5c3c185d9ec7d | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 10V, Negative-QTOF | splash10-000i-0000009000-11c33cb7dc615be3a690 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 20V, Negative-QTOF | splash10-01ti-1139605000-66173655ee584637bc1f | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(a-21:0/14:0) 40V, Negative-QTOF | splash10-004i-1149201000-891e720be763e16e6e7d | 2021-09-24 | Wishart Lab | View Spectrum |
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