| 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 03:03:46 UTC |
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| Update Date | 2022-11-30 19:25:58 UTC |
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| HMDB ID | HMDB0114907 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | PA(18:1(11Z)/20:1(11Z)) |
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| Description | PA(18:1(11Z)/20:1(11Z)) 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(18:1(11Z)/20:1(11Z)), in particular, consists of one chain of cis-vaccenic acid at the C-1 position and one chain of eicosenoic 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=C/CCCCCC)(COP(O)(O)=O)OC(=O)CCCCCCCCC\C=C/CCCCCCCC InChI=1S/C41H77O8P/c1-3-5-7-9-11-13-15-17-19-20-22-24-26-28-30-32-34-36-41(43)49-39(38-48-50(44,45)46)37-47-40(42)35-33-31-29-27-25-23-21-18-16-14-12-10-8-6-4-2/h14,16-17,19,39H,3-13,15,18,20-38H2,1-2H3,(H2,44,45,46)/b16-14-,19-17-/t39-/m1/s1 |
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| Synonyms | | Value | Source |
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| 1-cis-Vaccenoyl-2-eicosenoyl-sn-glycero-3-phosphate | HMDB | | 1-cis-Vaccenoyl-2-eicosenoyl-sn-phosphatidic acid | HMDB | | PA(18:1/20:1) | HMDB | | PA(18:1N7/20:1N9) | HMDB | | PA(18:1W7/20:1W9) | HMDB | | PA(38:2) | HMDB | | Phosphatidic acid(18:1(11Z)/20:1(11Z)) | HMDB | | Phosphatidic acid(18:1/20:1) | HMDB | | Phosphatidic acid(18:1n7/20:1n9) | HMDB | | Phosphatidic acid(18:1W7/20:1W9) | HMDB | | Phosphatidic acid(38:2) | HMDB | | Phosphatidate(18:1(11Z)/20:1(11Z)) | HMDB | | Phosphatidate(18:1/20:1) | HMDB | | Phosphatidate(18:1N7/20:1N9) | HMDB | | Phosphatidate(18:1W7/20:1W9) | HMDB | | Phosphatidate(38:2) | HMDB | | [(2R)-2-[(11Z)-Icos-11-enoyloxy]-3-[(11Z)-octadec-11-enoyloxy]propoxy]phosphonate | HMDB | | 1-cis-vaccenoyl-2-eicosenoyl-sn-glycero-3-phosphate | SMPDB, HMDB | | 1-cis-vaccenoyl-2-eicosenoyl-sn-phosphatidic acid | SMPDB, HMDB | | PA(18:1/20:1) | SMPDB, HMDB | | PA(18:1n7/20:1n9) | SMPDB, HMDB | | PA(18:1w7/20:1w9) | SMPDB, HMDB | | PA(38:2) | SMPDB, HMDB | | Phosphatidic acid(18:1(11Z)/20:1(11Z)) | SMPDB, HMDB | | Phosphatidic acid(18:1/20:1) | SMPDB, HMDB | | Phosphatidic acid(18:1n7/20:1n9) | SMPDB, HMDB | | Phosphatidic acid(18:1w7/20:1w9) | SMPDB, HMDB | | Phosphatidic acid(38:2) | SMPDB, HMDB | | Phosphatidate(18:1(11Z)/20:1(11Z)) | SMPDB, HMDB | | Phosphatidate(18:1/20:1) | SMPDB, HMDB | | Phosphatidate(18:1n7/20:1n9) | SMPDB, HMDB | | Phosphatidate(18:1w7/20:1w9) | SMPDB, HMDB | | PA(18:1(11Z)/20:1(11Z)) | SMPDB |
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| Chemical Formula | C41H77O8P |
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| Average Molecular Weight | 729.033 |
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| Monoisotopic Molecular Weight | 728.535606437 |
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| IUPAC Name | [(2R)-2-[(11Z)-icos-11-enoyloxy]-3-[(11Z)-octadec-11-enoyloxy]propoxy]phosphonic acid |
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| Traditional Name | (2R)-2-[(11Z)-icos-11-enoyloxy]-3-[(11Z)-octadec-11-enoyloxy]propoxyphosphonic acid |
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| CAS Registry Number | Not Available |
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| SMILES | [H][C@@](COC(=O)CCCCCCCCC\C=C/CCCCCC)(COP(O)(O)=O)OC(=O)CCCCCCCCC\C=C/CCCCCCCC |
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| InChI Identifier | InChI=1S/C41H77O8P/c1-3-5-7-9-11-13-15-17-19-20-22-24-26-28-30-32-34-36-41(43)49-39(38-48-50(44,45)46)37-47-40(42)35-33-31-29-27-25-23-21-18-16-14-12-10-8-6-4-2/h14,16-17,19,39H,3-13,15,18,20-38H2,1-2H3,(H2,44,45,46)/b16-14-,19-17-/t39-/m1/s1 |
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| InChI Key | JJOHACUMXCWCEP-RTJYTIBZSA-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. | 8.86 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 36.3749 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.01 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 5293.9 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 582.1 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 374.1 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 261.8 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1104.7 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1846.7 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 | 1376.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 260.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 3714.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 1149.9 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 | 2906.8 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1392.7 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 745.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 653.3 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 874.3 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 | 10.0 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| PA(18:1(11Z)/20:1(11Z)),1TMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 5155.7 | Semi standard non polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),1TMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 4520.7 | Standard non polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),1TMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 5836.6 | Standard polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),2TMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 5079.7 | Semi standard non polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),2TMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 4494.7 | Standard non polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),2TMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 5060.4 | Standard polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),1TBDMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 5395.7 | Semi standard non polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),1TBDMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 4612.9 | Standard non polar | 33892256 | | PA(18:1(11Z)/20:1(11Z)),1TBDMS,isomer #1 | CCCCCC/C=C\CCCCCCCCCC(=O)OC[C@H](COP(=O)(O)O[Si](C)(C)C(C)(C)C)OC(=O)CCCCCCCCC/C=C\CCCCCCCC | 5821.2 | 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(18:1(11Z)/20:1(11Z)) 10V, Positive-QTOF | splash10-02vm-1092502400-ec6d1f5e315c12c5d4b5 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 20V, Positive-QTOF | splash10-00ke-2192211000-b5f40464e792d2b735a0 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 40V, Positive-QTOF | splash10-00rm-1093022000-7200a0fc106dcec9dcc7 | 2019-02-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 10V, Negative-QTOF | splash10-01u0-4092300200-c2a220b77c7d115bf902 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 20V, Negative-QTOF | splash10-004i-9050000000-b6e1d4a65570651f58cd | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 40V, Negative-QTOF | splash10-004i-9000000000-7b011abf02a17067b0af | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 10V, Positive-QTOF | splash10-03fr-0000000900-d2b1917d92b4e8adf248 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 20V, Positive-QTOF | splash10-0059-0000005900-f502046e66db245b43b1 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 40V, Positive-QTOF | splash10-00ls-0000906200-e136856e027c7e199636 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 10V, Negative-QTOF | splash10-004i-0000000900-78de2b4b1a87619ed0a4 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 20V, Negative-QTOF | splash10-05rs-0033900400-417019b679c667f85139 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 40V, Negative-QTOF | splash10-053r-1196600100-d9e331af7ad64e2b85f1 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 10V, Positive-QTOF | splash10-0udi-0000000900-f0b905cf11c47200d7a6 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 20V, Positive-QTOF | splash10-0udi-0000009900-288397fd57e3bf8c6948 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - PA(18:1(11Z)/20:1(11Z)) 40V, Positive-QTOF | splash10-0uxu-0000902300-c0937ec1c3b4f7ba7dd1 | 2021-09-23 | Wishart Lab | View Spectrum |
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