4-Chloro-2-methylbenzoyl chloride CAS 21900-44-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21900-44-7 |
| Molecular Formula | C8H6Cl2O |
| Molecular Weight | 189.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 4-Chloro-2-methylbenzoyl chloride (CAS 21900-44-7) pharmaceutical standards reference standard. Molecular formula: C8H6Cl2O. Molecular weight: 189.04 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C8H6Cl2O |
| Molecular Weight | 189.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 3-Chloro-5-(chloromethyl)benzaldehyde (CAS 1379179-32-4)
- 2-Chloro-1-(2-chlorophenyl)ethanone (CAS 4209-25-0)
- 2-Chloro-3-methylbenzoyl chloride (CAS 21900-56-1)
- 2-Chloro-4-Methylbenzoyl chloride (CAS 21900-53-8)
- 2-Chloro-5-methylbenzoyl chloride (CAS 21900-50-5)
- 2-Chloro-6-methylbenzoyl Chloride (CAS 89894-44-0)
- 3-Chloro-2-methylbenzoyl Chloride (CAS 21900-47-0)
- 3-Chloro-5-methylbenzoyl chloride (CAS 21900-22-1)
Recommended Standards
- 4,6-Dichloro-2-cyclopropylpyrimidine (CAS 7043-09-6)
- 4-Chlorophenylacetyl chloride (CAS 25026-34-0)
- 4,6-Dichloro-2,3-dihydro-1H-pyrrolo[3,2-c]pyridine (CAS 5912-16-3)
- 4-((((Benzyloxy)carbonyl)amino)methyl)cyclohexane-1-carboxylic acid (CAS 215120-68-6)
- 2-Bromo-5-methylbenzoyl chloride (CAS 409110-31-2)
- 2-(Aminooxy)-N-(4-chlorophenyl)acetamide (CAS 35251-43-5)
- Methyl 4-ethyl-2,5-dimethyl-1H-pyrrole-3-carboxylate (CAS 27093-38-5)
- 4-Chloro-2-(bromomethyl)benzoic acid (CAS 62758-49-0)
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- [5-31]-Semaglutide (CAS CATO-C4X-2226263)
Why CATO?
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