3-Bromo-2-chlorobenzoyl chloride CAS 21900-59-4
| CAS No. | 21900-59-4 |
| Molecular Formula | C7H3BrCl2O |
| Molecular Weight | 253.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Bromo-2-chlorobenzoyl chloride.
CATO supplies 3-Bromo-2-chlorobenzoyl chloride (CAS 21900-59-4), a certified reference material (molecular formula C7H3BrCl2O, MW 253.91 g/mol) for analytical method development and quality control.
3-Bromo-2-chlorobenzoyl chloride (C7H3BrCl2O) 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-2-chlorobenzoyl 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 | C7H3BrCl2O |
| Molecular Weight | 253.91 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
- 2-Bromo-3,6-dichlorobenzaldehyde (CAS 1114809-26-5)
- 4-Bromo-2,6-dichlorobenzaldehyde (CAS 111829-72-2)
- 2-Bromo-3-chlorobenzoyl chloride (CAS 116529-64-7)
- 2-Bromo-6-chlorobenzoyl chloride (CAS 116529-65-8)
- 2-Bromo-4-chlorobenzoyl chloride (CAS 116779-74-9)
- 4-Bromo-3,5-dichlorobenzaldehyde (CAS 120077-80-7)
- 5-Bromo-2,3-dichlorobenzaldehyde (CAS 1229246-37-0)
- 3-Bromo-2,6-dichlorobenzaldehyde (CAS 1254701-24-0)
Recommended Standards
- 2-Bromo-5-Chlorobenzoyl chloride (CAS 42860-16-2)
- 3-Bromo-4-chlorobenzoyl chloride (CAS 21900-34-5)
- 2-Bromo-3,5-dichlorobenzaldehyde (CAS 873983-89-2)
- 3-Bromo-5-chlorobenzoyl chloride, 98% (CAS 21900-27-6)
- 5-(2-Methoxy-5-nitrophenyl)furan-2-carbothioamide (CAS 1354756-77-6)
- Ethyl 8-methoxy-4-oxo-1,4-dihydro-1,5-naphthyridine-3-carboxylate (CAS 64761-20-2)
- 244759-45-3 (2E)-3-(4-Isopropylphenyl)acryloyl chloride MFCD11107996 (CAS 244759-45-3)
- Bicalutamide Glucoronide (CAS 151262-59-8)
- 3-(5-(Trifluoromethyl)-1H-pyrazol-3-yl)propan-1-ol (CAS 2306262-46-2)
- 3-(Trifluoromethoxy)phenol (CAS 827-99-6)
- (1-Benzyl-3-methylazetidin-3-yl)methanamine (CAS 1804129-04-1)
- 4-(3-chloro-4-methoxyphenyl)-1,3-thiazol-2-amine (CAS 97713-62-7)
- 2,4-Difluoro-5-iodobenzaldehyde (CAS 1097626-30-6)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com