| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2009-11-30 15:50:59 UTC |
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| Update Date | 2020-02-26 21:38:20 UTC |
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| HMDB ID | HMDB0013208 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 9-Hexadecenoylcholine |
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| Description | 9-Hexadecenoylcholine, also known as palmitoloelycholine, is a fatty acid-choline and is the ester product of 9-hexadecenoic acid and choline. The pharmacological effects of a series of fatty acid-choline esters have been studied on the isolated rabbit heart, the isolated guinea-pig ileum, and the rat stomach. The effect changed with increasing chain length, and three different types of response were observed. The short-chain compounds produced depression of the isolated rabbit heart and spasm of the isolated guinea-pig ileum. Only one, butyrylcholine, had an erratic stimulating effect on hydrochloric acid secretion by the partially vagotomized rat stomach. Medium-chain compounds had a stimulating effect on the isolated rabbit heart, a mixed spasmogenic and relaxant effect on the isolated guinea-pig ileum, and no effect on the rat stomach. Long-chain compounds blocked the effect of acetylcholine on the isolated rabbit heart and the isolated guinea-pig ileum; they also depressed spontaneous hydrochloric acid secretion by the rat stomach. |
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| Structure | CCCCCC\C=C/CCCCCCCC(=O)OCC[N+](C)(C)C InChI=1S/C21H42NO2/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-21(23)24-20-19-22(2,3)4/h10-11H,5-9,12-20H2,1-4H3/q+1/b11-10- |
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| Synonyms | | Value | Source |
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| Choline palmitoleate | HMDB | | Palmitoloelycholine | HMDB | | 9-Hexadecenoylcholine | HMDB |
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| Chemical Formula | C21H42NO2 |
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| Average Molecular Weight | 340.571 |
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| Monoisotopic Molecular Weight | 340.321006017 |
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| IUPAC Name | {2-[(9Z)-hexadec-9-enoyloxy]ethyl}trimethylazanium |
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| Traditional Name | {2-[(9Z)-hexadec-9-enoyloxy]ethyl}trimethylazanium |
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| CAS Registry Number | 943438-47-9 |
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| SMILES | CCCCCC\C=C/CCCCCCCC(=O)OCC[N+](C)(C)C |
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| InChI Identifier | InChI=1S/C21H42NO2/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-21(23)24-20-19-22(2,3)4/h10-11H,5-9,12-20H2,1-4H3/q+1/b11-10- |
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| InChI Key | KZSMYKYPFGHWQV-KHPPLWFESA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as acyl cholines. These are acylated derivatives of choline. Choline or 2-Hydroxy-N,N,N-trimethylethanaminium is a quaternary ammonium salt with the chemical formula (CH3)3N+(CH2)2OH. |
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| Kingdom | Organic compounds |
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| Super Class | Organic nitrogen compounds |
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| Class | Organonitrogen compounds |
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| Sub Class | Quaternary ammonium salts |
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| Direct Parent | Acyl cholines |
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| Alternative Parents | |
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| Substituents | - Acyl choline
- Fatty acid ester
- Fatty acyl
- Tetraalkylammonium salt
- Carboxylic acid ester
- Monocarboxylic acid or derivatives
- Carboxylic acid derivative
- Organic oxygen compound
- Organopnictogen compound
- Organic oxide
- Hydrocarbon derivative
- Organic salt
- Organooxygen compound
- Carbonyl group
- Amine
- Organic cation
- 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 | Not Available |
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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 Sections| Predictor | Adduct Type | CCS Value (Å2) | Reference |
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| DeepCCS | [M+H]+ | 190.942 | 30932474 | | DeepCCS | [M-H]- | 188.391 | 30932474 | | DeepCCS | [M-2H]- | 221.592 | 30932474 | | DeepCCS | [M+Na]+ | 197.285 | 30932474 |
Predicted 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. | 9.12 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 20.7852 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 | 2777.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 323.2 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 242.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 213.0 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 589.5 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 941.0 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 | 757.6 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 505.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 2289.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 576.3 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 | 2115.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 547.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 486.7 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 289.6 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 215.3 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 | 8.4 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| General References | - Elshenawy S, Pinney SE, Stuart T, Doulias PT, Zura G, Parry S, Elovitz MA, Bennett MJ, Bansal A, Strauss JF 3rd, Ischiropoulos H, Simmons RA: The Metabolomic Signature of the Placenta in Spontaneous Preterm Birth. Int J Mol Sci. 2020 Feb 4;21(3). pii: ijms21031043. doi: 10.3390/ijms21031043. [PubMed:32033212 ]
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