(1R,2R)-2-(2-ethylbenzoyl)cyclopentane-1-carboxylic acid CAS 733740-93-7
| CAS No. | 733740-93-7 |
| Molecular Formula | C15H18O3 |
| Molecular Weight | 246.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (1R,2R)-2-(2-ethylbenzoyl)cyclopentane-1-carboxylic acid (C15H18O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 246.30 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
(1R,2R)-2-(2-ethylbenzoyl)cyclopentane-1-carboxylic acid (CAS 733740-93-7) is a high-purity analytical reference standard with the molecular formula C15H18O3 and a molecular weight of 246.30 g/mol.
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 | C15H18O3 |
| Molecular Weight | 246.30 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Recommended Standards
- (1R,2R)-2-(2,6-dimethylbenzoyl)cyclopentane-1-carboxylic acid (CAS 733741-17-8)
- (1R,2R)-2-(2-methylbenzoyl)cyclohexane-1-carboxylic acid (CAS 733742-70-6)
- (1R,2R)-2-(2,4-dimethylbenzoyl)cyclopentane-1-carboxylic acid (CAS 733741-14-5)
- (1R,2R)-2-(3,4-dimethylbenzoyl)cyclopentane-1-carboxylic acid (CAS 733741-19-0)
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