2-chloro-4-methyl-benzophenone 71549-60-5 CAS 71549-60-5
| CAS No. | 71549-60-5 |
| Molecular Formula | C14H11ClO |
| Molecular Weight | 230.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-chloro-4-methyl-benzophenone 71549-60-5 (CAS 71549-60-5), molecular formula C14H11ClO and molecular weight 230.69 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system, 2-chloro-4-methyl-benzophenone 71549-60-5 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 230.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-chloro-4-methyl-benzophenone 71549-60-5 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 | C14H11ClO |
| Molecular Weight | 230.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
Related chloro Standards
- 2-(4-Chloro-3,5-dimethyl-1H-pyrazol-1-yl)butanehydrazide (CAS 1005696-51-4)
- Ethyl 2-(4-chloro-3,5-dimethyl-1h-pyrazol-1-yl)propanoate (CAS 1007487-54-8)
- 2-(2-Chloro-6,7-dimethylquinolin-3-yl)acetonitrile (CAS 1017191-76-2)
- 2-(2-Chloro-7,8-dimethylquinolin-3-yl)acetonitrile (CAS 1017192-01-6)
- 2-(2-Chloro-5,7-dimethylquinolin-3-yl)acetonitrile (CAS 1017329-62-2)
- 2-(2-Chloro-6,8-dimethylquinolin-3-yl)acetonitrile (CAS 1017329-66-6)
- 2-(2-Chloro-8-ethylquinolin-3-yl)acetonitrile (CAS 1017329-86-0)
- 2-(2-Chloro-5,8-dimethylquinolin-3-yl)acetonitrile (CAS 1017355-86-0)
Recommended Standards
- N-Butyl-2-chloro-N-(4-methyloxazol-2-yl)acetamide (CAS 57068-65-2)
- Phenytoin Impurity 11 (CAS 447-31-4)
- N-(4-Chlorophenyl)benzimidamide (CAS 7035-69-0)
- Prusogliptin Impurity 8 (CAS CATO-C4X-32848)
- 2-[[3-(Cyclopentyloxy)-4-methoxyphenyl]-methyl]phthalimide (CAS 287196-92-3)
- L-Tryptophan-2-propen-1-yl ester, hydrochloride (1:1) (CAS 204063-20-7)
- 1-Phenyl-5,6-dihydropyridin-2(1H)-one (CAS 56235-33-7)
- 4-Chloro-2-((3-methoxybenzyl)thio)pyridine (CAS 1346707-47-8)
- 1-(Nonyloxy)-4-{2-[4-(nonyloxy)phenyl]ethyl}benzene (CAS 866155-43-3)
- 2-Nitroethanol (CAS 625-48-9)
- 2-Methyl-2-(m-tolyl)propan-1-ol (CAS 32454-27-6)
- 4-[(Z)-2-(4-chlorophenyl)ethenyl]-2-[(1H-1,2,4-triazol-1-yl)methyl]pyrimidine 400083-23-0 5F-038 (CAS 400083-23-0)
- Methyl 2-chloro-4-fluoro-5-iodobenzoate (CAS 264927-53-9)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
Why CATO?
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