3-Bromo-4-methyl-benzoyl chloride CAS 21900-33-4
| CAS No. | 21900-33-4 |
| Molecular Formula | C8H6BrClO |
| Molecular Weight | 233.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Bromo-4-methyl-benzoyl chloride is closely related to a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Bromo-4-methyl-benzoyl chloride (CAS 21900-33-4), molecular formula C8H6BrClO and molecular weight 233.49 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-4-methyl-benzoyl chloride (C8H6BrClO) contains a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 3-Bromo-4-methyl-benzoyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H6BrClO |
| Molecular Weight | 233.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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/Br-containing |
Related Bromo Standards
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Recommended Standards
- 3’-Bromo-4’-chloroacetophenone (CAS 54826-14-1)
- 3-Bromophenylacetyl chloride (CAS 98288-51-8)
- 3-(Bromomethyl)benzoyl chloride (CAS 54267-06-0)
- 4’-Bromo-2’-chloroacetophenone (CAS 252561-81-2)
- 1,3-Diphenyl-1H-indazol-5-amine (CAS 857800-70-5)
- Thromboxane B2 (CAS 54397-85-2)
- 1-methyl-1H-1,2,3-benzotriazol-6-amine (CAS 26861-23-4)
- 1031577-56-6 Ethyl 3-pyrimidin-2-yl-1,2,4-oxadiazole-5-carboxylate MFCD15732346 (CAS 1031577-56-6)
- 2-Chloro-1-(2-fluorophenyl)ethan-1-one (CAS 53688-17-8)
- Isobutylamine (CAS 78-81-9)
- 1-(4-Bromobenzyl)azepane (CAS 110439-49-1)
- 1-(3-Chlorophenyl)-4-methylpentan-2-one (CAS 1175909-18-8)
- Methyl 5-((2-hydroxyethyl)thio)-2-nitrobenzoate (CAS 1350456-27-7)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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