(9E,11E,13Z)-9,11,13-Octadecatrienoic Acid CAS 4337-71-7
| CAS No. | 4337-71-7 |
| Molecular Formula | C18H30O2 |
| Molecular Weight | 278.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (9E,11E,13Z)-9,11,13-Octadecatrienoic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
(9E,11E,13Z)-9,11,13-Octadecatrienoic Acid (CAS 4337-71-7), molecular formula C18H30O2 and molecular weight 278.43 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, (9E,11E,13Z)-9,11,13-Octadecatrienoic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 278.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C18H30O2 |
| Molecular Weight | 278.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Recommended Standards
- 9(E),11(E),13(E)-Octadecatrienoic Acid (CAS 544-73-0)
- (9E,12E,15E)-Octadeca-9,12,15-trienoic acid (CAS 28290-79-1)
- (8Z,10E,12Z)-Octadeca-8,10,12-trienoic acid (CAS 28872-28-8)
- (9E,12E,15Z)-Octadecatrienoic Acid (CAS 21661-11-0)
- 2-((4-(N-isopropylsulfamoyl)phenyl)carbamoyl)cyclohexane-1-carboxylic acid (CAS 817187-19-2)
- Methyl 1-(3-fluorophenoxy)cyclobutanecarboxylate (CAS 1986907-75-8)
- 3-Ethyl 5-methyl 2-chloro-6-methylpyridine-3,5-dicarboxylate (CAS 1239731-83-9)
- Imidazo[1,2-a]pyridine-8-carboxylic Acid (CAS 133427-08-4)
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- Ethyl 2-ethoxynicotinate (CAS 15441-51-7)
- Deferasirox Impurity 26 (CAS 1688656-83-8)
- 3-(Piperazin-1-yl)propane-1,2-diol (CAS 7483-59-2)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com