Ethyl Ximenynate ((11E)-11-Octadecen-9-ynoic acid ethyl ester) CAS 159534-89-1
| CAS No. | 159534-89-1 |
| Molecular Formula | C20H34O2 |
| Molecular Weight | 306.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl Ximenynate ((11E)-11-Octadecen-9-ynoic acid ethyl ester) (CAS 159534-89-1), molecular formula C20H34O2 and molecular weight 306.48 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl Ximenynate ((11E)-11-Octadecen-9-ynoic acid ethyl ester) (C20H34O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl Ximenynate ((11E)-11-Octadecen-9-ynoic acid ethyl ester) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H34O2 |
| Molecular Weight | 306.48 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.) | 2002 |
Recommended Standards
- 8(17)14-Labdadiene-13,18-diol - (CAS 1438-65-9)
- (4aR,6aS,8R,9S,11aR,11bR)-8-(Hydroxymethyl)-4,4,11b-trimethyltetradecahydro-6a,9-methanocyclohepta[a]naphthalen-8-ol (CAS 16836-31-0)
- 1-([1,2,4]Triazolo[1,5-a]pyridin-6-yl)-1-((tert-butyldimethylsilyl)oxy)propan-2-amine (CAS 1043907-96-5)
- (2Z,6E)-2-((E)-4,8-Dimethylnona-3,7-dien-1-yl)-6-methylocta-2,6-diene-1,8-diol (CAS 64218-02-6)
- 1,2-Bis(perbromophenyl)ethane (CAS 84852-53-9)
- 2-(4-Methylbenzamido)-5,6-dihydro-4H-cyclopenta[d]thiazole-4-carboxylic acid (CAS 1019111-55-7)
- 2-Chloro-5-ethynyl-3-iodopyridin-4-amine (CAS 1353877-92-5)
- (3-Morpholinotetrahydro-2H-pyran-3-yl)methanamine (CAS 1342150-86-0)
- Mivacurium chloride Impurity 51 (CAS CATO-C4X-137551)
- (2S)-2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)propanoic acid (CAS 180923-78-8)
- (1R,2S)-2-hydroxycyclopentane-1-carboxamide (CAS 40481-98-9)
- 1-Isopropylisoquinoline-6,7-diol (CAS 392334-36-0)
- Trimethyl(pyren-1-ylethynyl)silane (CAS 253271-87-3)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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