4-Ethyl-1-cyclohexanecarboxylic anhydride CAS 1263376-20-0
| CAS No. | 1263376-20-0 |
| Molecular Formula | C18H30O3 |
| Molecular Weight | 294.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, 4-Ethyl-1-cyclohexanecarboxylic anhydride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 294.43 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).
4-Ethyl-1-cyclohexanecarboxylic anhydride (CAS 1263376-20-0), molecular formula C18H30O3 and molecular weight 294.43 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Ethyl-1-cyclohexanecarboxylic anhydride 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.
Physical & Chemical Properties
| Molecular Formula | C18H30O3 |
| Molecular Weight | 294.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| 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.) | 1990 |
Related Ethyl Standards
- 54867-08-2 Cyclohexanecarboxylic acid, 2-[[(phenylmethoxy)carbonyl]amino]-, (1R,2S)-rel- (9CI) (CAS 54867-08-2)
- 4-Methyl-1-cyclohexanecarboxylic anhydride (CAS 1263376-48-2)
- Cyclohexanecarboxylic acid, 2-[[(1,1-dimethylethoxy)carbonyl]amino]-, methyl esteR, (1S,2R)- (CAS 267230-26-2)
- Cyclohexanecarboxylic Anhydride (CAS 22651-87-2)
- 27948-10-3 Cyclohexanecarboxylic acid, hexyl ester Hexyl cyclohexanecarboxylate AI3-19663 EINECS 248-744-7 (CAS 27948-10-3)
- Cyclohexanecarboxylic acid, 2-cyano-, 1,1-dimethylethyl ester (CAS 316124-21-7)
- Cyclohexanecarboxylic acid isopropyl ester (CAS 6553-80-6)
- Cyclohexanecarboxylic Acid Methyl Ester-d11 (CAS 1215077-49-8)
Recommended Standards
- 2,7-Di-tert-butyl-9H-fluoren-9-ol (CAS 1242278-87-0)
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- Cilastatin Impurity 9 (CAS 131833-97-1)
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