Ethyl 2-cycloheptyl-2-oxoacetate CAS 33487-20-6
| CAS No. | 33487-20-6 |
| Molecular Formula | C11H18O3 |
| Molecular Weight | 198.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ethyl 2-cycloheptyl-2-oxoacetate (C11H18O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 198.26 g/mol, it falls into the medium-molecular-weight range. 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).
CATO supplies Ethyl 2-cycloheptyl-2-oxoacetate (CAS 33487-20-6), a certified reference material (molecular formula C11H18O3, MW 198.26 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H18O3 |
| Molecular Weight | 198.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
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Recommended Standards
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- 2-(4-Isobutylphenyl)-6-methylquinoline-4-carboxylic acid (CAS 438219-40-0)
- (2-(tert-Butyl)-4-methylpyrimidin-5-yl)boronic acid (CAS 2225172-32-5)
- tert-Butyl 4-(benzyloxy)-1H-indole-1-carboxylate (CAS 903131-59-9)
- rel-(4aR,7aR)-tert-Butyl hexahydro-1H-pyrrolo[3,4-b]pyridine-6(2H)-carboxylate (CAS 1330763-74-0)
- (S)-N-(1-phenylethyl)acrylamide (CAS 19035-71-3)
- (S)-N-((1-Ethylpyrrolidin-2-yl)methyl)-4-methoxy-2-methylpyrimidine-5-carboxamide (CAS 72412-31-8)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
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