(1R,2S)-2-(2,4-dimethylbenzoyl)cyclohexane-1-carboxylic acid CAS 85603-44-7
| CAS No. | 85603-44-7 |
| Molecular Formula | C16H20O3 |
| Molecular Weight | 260.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(1R,2S)-2-(2,4-dimethylbenzoyl)cyclohexane-1-carboxylic acid (CAS 85603-44-7) is a high-purity analytical reference standard with the molecular formula C16H20O3 and a molecular weight of 260.33 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, (1R,2S)-2-(2,4-dimethylbenzoyl)cyclohexane-1-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 260.33 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).
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.
As a certified reference material (CRM), (1R,2S)-2-(2,4-dimethylbenzoyl)cyclohexane-1-carboxylic acid 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 | C16H20O3 |
| Molecular Weight | 260.33 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.) | 1981 |
Recommended Standards
- (1R,2S)-2-(2,3-dimethylbenzoyl)cyclohexane-1-carboxylic acid (CAS 733742-67-1)
- (1R,2S)-2-(2,5-dimethylbenzoyl)cyclohexane-1-carboxylic acid (CAS 85603-45-8)
- (1R,2R)-2-(3,5-dimethylbenzoyl)cyclohexane-1-carboxylic acid (CAS 733742-85-3)
- (1R,2S)-2-(2-ethylbenzoyl)cyclohexane-1-carboxylic acid (CAS 733742-64-8)
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