| Record Information |
|---|
| Version | 5.0 |
|---|
| Status | Expected but not Quantified |
|---|
| Creation Date | 2007-05-22 22:04:33 UTC |
|---|
| Update Date | 2022-03-07 02:49:31 UTC |
|---|
| HMDB ID | HMDB0006294 |
|---|
| Secondary Accession Numbers | |
|---|
| Metabolite Identification |
|---|
| Common Name | 16-Hydroxyhexadecanoic acid |
|---|
| Description | 16-Hydroxyhexadecanoic acid, also known as 16-hydroxypalmitic acid, is a hydroxylated fatty acid where the terminal (omega) carbon has been hydroxylated. In animal tissues, a family of enzymes termed cytochromes P450s are involved in fatty acid oxidation, hydroxylating with high specificity at the energetically unfavourable terminal (omega) or omega-1 carbons. Hydroxy fatty acids primarily come from the consumption of plant products (vegetables or fruits) or cow’s milk. Omega hydroxy fatty acids are found in the structure of suberin, a lipid polyester present in plant cell walls, and of cutin, a lipid polyester which is a component of the plant cuticle. These apoplastic structures are important plant-environment interfaces that act as barriers limiting water and nutrient loss and protecting plants from radiation and pathogens. 16-Hydroxyhexadecanoic acid and 18-hydroxystearic acid are particularly abundant in cutin in the plant cuticle. 16-Hydroxyhexadecanoic acid has been proposed as a biomarker of beer consumption. |
|---|
| Structure | InChI=1S/C16H32O3/c17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16(18)19/h17H,1-15H2,(H,18,19) |
|---|
| Synonyms | | Value | Source |
|---|
| 16-Hydroxy-hexadecanoic acid | ChEBI | | 16-Hydroxypalmitic acid | ChEBI | | 16-OH 16:0 | ChEBI | | Juniperic acid | ChEBI | | Omega-hydroxypalmitic acid | ChEBI | | 16-Hydroxy-hexadecanoate | Generator | | 16-Hydroxypalmitate | Generator | | Juniperate | Generator | | Omega-hydroxypalmitate | Generator | | 16-Hydroxyhexadecanoate | Generator | | 16-Hydroxy hexadecanoate | HMDB | | FA(16:0(16-OH)) | HMDB | | Lanopalmitic acid | HMDB | | Omega-hydroxyhexadecanoic acid | HMDB | | Ω-hydroxyhexadecanoic acid | HMDB | | Ω-hydroxypalmitic acid | HMDB | | 16-Hydroxyhexadecanoic acid | ChEBI, HMDB |
|
|---|
| Chemical Formula | C16H32O3 |
|---|
| Average Molecular Weight | 272.4235 |
|---|
| Monoisotopic Molecular Weight | 272.23514489 |
|---|
| IUPAC Name | 16-hydroxyhexadecanoic acid |
|---|
| Traditional Name | 16-hydroxyhexadecanoic acid |
|---|
| CAS Registry Number | 506-13-8 |
|---|
| SMILES | OCCCCCCCCCCCCCCCC(O)=O |
|---|
| InChI Identifier | InChI=1S/C16H32O3/c17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16(18)19/h17H,1-15H2,(H,18,19) |
|---|
| InChI Key | UGAGPNKCDRTDHP-UHFFFAOYSA-N |
|---|
| Chemical Taxonomy |
|---|
| Description | Belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. |
|---|
| Kingdom | Organic compounds |
|---|
| Super Class | Lipids and lipid-like molecules |
|---|
| Class | Fatty Acyls |
|---|
| Sub Class | Fatty acids and conjugates |
|---|
| Direct Parent | Long-chain fatty acids |
|---|
| Alternative Parents | |
|---|
| Substituents | - Long-chain fatty acid
- Hydroxy fatty acid
- Straight chain fatty acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Primary alcohol
- Organooxygen compound
- Carbonyl group
- Alcohol
- Aliphatic acyclic compound
|
|---|
| Molecular Framework | Aliphatic acyclic compounds |
|---|
| External Descriptors | |
|---|
| Ontology |
|---|
| Physiological effect | Not Available |
|---|
| Disposition | |
|---|
| Process | Not Available |
|---|
| Role | Not Available |
|---|
| Physical Properties |
|---|
| State | Solid |
|---|
| Experimental Molecular Properties | |
|---|
| Experimental Chromatographic Properties | Experimental Collision Cross Sections| Adduct Type | Data Source | CCS Value (Å2) | Reference |
|---|
| [M-H]- | MetCCS_train_neg | 168.988 | 30932474 |
|
|---|
| Predicted Molecular Properties | |
|---|
| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
|---|
| 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. | 9.97 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 16.668 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.93 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 36.9 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
|---|
| 16-Hydroxyhexadecanoic acid,1TMS,isomer #1 | C[Si](C)(C)OCCCCCCCCCCCCCCCC(=O)O | 2354.8 | Semi standard non polar | 33892256 | | 16-Hydroxyhexadecanoic acid,1TMS,isomer #2 | C[Si](C)(C)OC(=O)CCCCCCCCCCCCCCCO | 2312.2 | Semi standard non polar | 33892256 | | 16-Hydroxyhexadecanoic acid,2TMS,isomer #1 | C[Si](C)(C)OCCCCCCCCCCCCCCCC(=O)O[Si](C)(C)C | 2404.5 | Semi standard non polar | 33892256 | | 16-Hydroxyhexadecanoic acid,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OCCCCCCCCCCCCCCCC(=O)O | 2579.6 | Semi standard non polar | 33892256 | | 16-Hydroxyhexadecanoic acid,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCCCCCCCCCCCCCCO | 2563.8 | Semi standard non polar | 33892256 | | 16-Hydroxyhexadecanoic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OCCCCCCCCCCCCCCCC(=O)O[Si](C)(C)C(C)(C)C | 2921.0 | Semi standard non polar | 33892256 |
|
|---|
| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
|---|
| Predicted GC-MS | Predicted GC-MS Spectrum - 16-Hydroxyhexadecanoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0006-7930000000-ad8cf0089b491fa1e5cd | 2018-04-09 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 16-Hydroxyhexadecanoic acid 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 |
|---|
| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 10V, Positive-QTOF | splash10-0a4i-0090000000-468101d8a11af1e19fb2 | 2015-05-27 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 20V, Positive-QTOF | splash10-0a4i-1390000000-b96e5d9bf93a0533f50a | 2015-05-27 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 40V, Positive-QTOF | splash10-001l-7910000000-de85d9f11917d3bd2f54 | 2015-05-27 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 10V, Negative-QTOF | splash10-00di-0090000000-355bea410e278c7b034e | 2015-05-27 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 20V, Negative-QTOF | splash10-0uk9-1090000000-a82fa5c9114086d0e61e | 2015-05-27 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 40V, Negative-QTOF | splash10-0a4l-9250000000-93d26870cf342252967f | 2015-05-27 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 10V, Positive-QTOF | splash10-0ab9-2290000000-578204c997b44c45b07a | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 20V, Positive-QTOF | splash10-0a4i-9440000000-a06fb9b2d3c16ea9e814 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 40V, Positive-QTOF | splash10-0a4m-9000000000-9ad19ca2f1345bd8f812 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 10V, Negative-QTOF | splash10-00di-0090000000-09835f7bfaa31d64d09c | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 20V, Negative-QTOF | splash10-0fk9-0090000000-9e380c8ffde0c8460bc6 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 16-Hydroxyhexadecanoic acid 40V, Negative-QTOF | splash10-0006-9320000000-be3d31d993db22a6eb07 | 2021-09-23 | Wishart Lab | View Spectrum |
|
|---|