Ethyl cyclohexa-1,3-diene-1-carboxylate CAS 3725-40-4
| CAS No. | 3725-40-4 |
| Molecular Formula | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl cyclohexa-1,3-diene-1-carboxylate (C9H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Ethyl cyclohexa-1,3-diene-1-carboxylate (CAS 3725-40-4), molecular formula C9H12O2 and molecular weight 152.19 g/mol, is a CATO reference standard with documented purity and traceability.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 |
Related Ethyl Standards
- Ethyl cyclohexa-2,5-diene-1-carboxylate (CAS 29246-24-0)
- 3-(Cyclohexa-1,4-dien-1-yl)propan-1-ol (CAS 87151-66-4)
- 3-(Cyclohexa-1,4-dien-1-yl)-6-methylpyrazin-2(1H)-one (CAS 78076-07-0)
- Cyclohexa-1,3-dien-1-ylmethyl furan-3-carboxylate (CAS 97222-13-4)
- Cyclohexa-1,5-dien-1-ylmethyl 1H-pyrazole-1-carboxylate (CAS 802982-86-1)
- Cyclohexa-1,4-dien-1-ylmethyl pyridazine-1(2H)-carboxylate (CAS 140200-92-6)
- (E)-6-(2-(cyclohexa-1,5-dien-1-yl)vinyl)-4-methoxy-5,6-dihydro-2H-pyran-2-one (CAS 9000-38-8)
- 1-(Cyclohexa-1,5-dien-1-yl)-2-methylpropan-2-yl oxazole-4-carboxylate (CAS 709656-07-5)
Recommended Standards
- Ephedrine Impurity 5 (CAS 22805-42-1)
- 5-propylbenzene-1,3-diol (CAS 500-49-2)
- Fluoxetine Impurity 01 (CAS 4850-49-1)
- Biphenylene (CAS 259-79-0)
- Methyl 2-oxo-2-(tetrahydro-2H-thiopyran-4-yl)acetate (CAS 1803584-47-5)
- 2-(4-Ethylphenyl)pentan-2-ol (CAS 1248245-13-7)
- 1-Phenyl-1h-pyrazole-4-carbohydrazide (CAS 485320-54-5)
- Tert-butyl (3R,5S)-3-cyclopropyl-5-methylpiperazine-1-carboxylate (CAS 1557288-60-4)
- 3-(Benzyloxy)-5-(trifluoromethyl)pyridine (CAS 186593-13-5)
- Valsartan Impurity 138 (CAS CATO-C4X-1057138)
- N-(9-Ethyl-9H-carbazol-3-yl)-2-(4-methyl-2,5-dioxo-4-(p-tolyl)imidazolidin-1-yl)acetamide (CAS 956357-71-4)
- 4-(Difluoromethyl)-5-iodo-2-methoxy-3-methylpyridine (CAS 1807093-06-6)
- (S)-N-((1-(2-Aminoacetyl)pyrrolidin-2-yl)methyl)-N-ethylacetamide (CAS 1354008-92-6)
- Semaglutide (CAS CATO-C4X-2226105)
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