| 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 06:22:14 UTC |
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| Update Date | 2022-11-30 19:26:23 UTC |
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| HMDB ID | HMDB0115897 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | PA(i-22:0/18:0) |
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| Description | PA(i-22:0/18:0) 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(i-22:0/18:0), in particular, consists of one chain of isodocosanoic acid at the C-1 position and one chain of stearic 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)CCCCCCCCCCCCCCCCCCC(C)C)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCCCC InChI=1S/C43H85O8P/c1-4-5-6-7-8-9-10-11-14-19-22-25-28-31-34-37-43(45)51-41(39-50-52(46,47)48)38-49-42(44)36-33-30-27-24-21-18-16-13-12-15-17-20-23-26-29-32-35-40(2)3/h40-41H,4-39H2,1-3H3,(H2,46,47,48)/t41-/m1/s1 |
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| Synonyms | | Value | Source |
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| 1-Isodocosanoyl-2-stearoyl-sn-glycero-3-phosphate | HMDB | | 1-Isodocosanoyl-2-stearoyl-sn-phosphatidic acid | HMDB | | PA(40:0) | HMDB | | Phosphatidic acid(i-22:0/18:0) | HMDB | | Phosphatidic acid(40:0) | HMDB | | Phosphatidate(I-22:0/18:0) | HMDB | | Phosphatidate(40:0) | HMDB | | [(2R)-3-[(20-Methylhenicosanoyl)oxy]-2-(octadecanoyloxy)propoxy]phosphonate | HMDB | | PA(i-22:0/18:0) | SMPDB |
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| Chemical Formula | C43H85O8P |
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| Average Molecular Weight | 761.119 |
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| Monoisotopic Molecular Weight | 760.598206695 |
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| IUPAC Name | [(2R)-3-[(20-methylhenicosanoyl)oxy]-2-(octadecanoyloxy)propoxy]phosphonic acid |
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| Traditional Name | (2R)-3-[(20-methylhenicosanoyl)oxy]-2-(octadecanoyloxy)propoxyphosphonic acid |
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| CAS Registry Number | Not Available |
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| SMILES | [H][C@@](COC(=O)CCCCCCCCCCCCCCCCCCC(C)C)(COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCCCC |
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| InChI Identifier | InChI=1S/C43H85O8P/c1-4-5-6-7-8-9-10-11-14-19-22-25-28-31-34-37-43(45)51-41(39-50-52(46,47)48)38-49-42(44)36-33-30-27-24-21-18-16-13-12-15-17-20-23-26-29-32-35-40(2)3/h40-41H,4-39H2,1-3H3,(H2,46,47,48)/t41-/m1/s1 |
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| InChI Key | HSZAFILTGSKUGH-VQJSHJPSSA-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. | 9.67 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 39.7071 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.34 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 5585.4 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 771.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 422.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 292.1 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1099.8 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1953.7 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 | 1787.8 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 179.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 3904.4 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 1184.2 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 | 3209.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1505.8 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 798.3 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 882.7 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 892.8 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 | 9.7 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| PA(i-22:0/18:0),1TMS,isomer #1 | CCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C | 5279.2 | Semi standard non polar | 33892256 | | PA(i-22:0/18:0),1TMS,isomer #1 | CCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C | 4626.9 | Standard non polar | 33892256 | | PA(i-22:0/18:0),1TMS,isomer #1 | CCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C | 6221.1 | Standard polar | 33892256 | | PA(i-22:0/18:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 5530.2 | Semi standard non polar | 33892256 | | PA(i-22:0/18:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 4740.3 | Standard non polar | 33892256 | | PA(i-22:0/18:0),1TBDMS,isomer #1 | CCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCCCC(C)C)COP(=O)(O)O[Si](C)(C)C(C)(C)C | 6171.2 | 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(i-22:0/18:0) GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-13 | 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(i-22:0/18:0) 10V, Positive-QTOF | splash10-044i-2196702700-fabb7c334289e63f570b | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 20V, Positive-QTOF | splash10-00tb-3295201100-a364f6acb9c7d7a59006 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 40V, Positive-QTOF | splash10-007t-2395002000-a047a6e1a018c89b1fa2 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 10V, Negative-QTOF | splash10-05ci-4039400300-611e0c1e93c62bc2aebb | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 20V, Negative-QTOF | splash10-004i-9014000000-b761c9c40757114db7e7 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 40V, Negative-QTOF | splash10-004i-9000000000-6eac417e6d84569677ce | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 10V, Negative-QTOF | splash10-0a4i-0000000900-b46100095c3d3e7fec21 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 20V, Negative-QTOF | splash10-05s0-0033900400-2485c1576eb6a7ca4414 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 40V, Negative-QTOF | splash10-0019-1169600100-833a499ff7cfd5f8cc09 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 10V, Positive-QTOF | splash10-001i-0000000900-4f5e0459a0492f4fda74 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 20V, Positive-QTOF | splash10-0020-0000009900-cac2493083ddc18c5cf0 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 40V, Positive-QTOF | splash10-02av-0000922400-142e6779566676a0f34c | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 10V, Positive-QTOF | splash10-01ox-0000000900-db61025fea7f5a1ae0db | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 20V, Positive-QTOF | splash10-03di-0000005900-3fb6995bc726a5888b8c | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(i-22:0/18:0) 40V, Positive-QTOF | splash10-03mi-0000906200-8edd893bf703fddd0b9c | 2021-09-25 | Wishart Lab | View Spectrum |
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