3-bromo-2-methyl-benzoyl chloride CAS 21900-48-1
| CAS No. | 21900-48-1 |
| Molecular Formula | C8H12BrClO |
| Molecular Weight | 239.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-bromo-2-methyl-benzoyl chloride 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.
CATO supplies 3-bromo-2-methyl-benzoyl chloride (CAS 21900-48-1), a certified reference material (molecular formula C8H12BrClO, MW 239.54 g/mol) for analytical method development and quality control.
Structurally, 3-bromo-2-methyl-benzoyl chloride (C8H12BrClO) contains a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 239.54 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C8H12BrClO |
| Molecular Weight | 239.54 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl/Br-containing |
Related bromo Standards
- 4-Bromo-5-chloro-1H-indazole (CAS 1056264-74-4)
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- 5-Bromo-7-chloro-1H-pyrrolo[2,3-c]pyridine (CAS 1198096-48-8)
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Recommended Standards
- 2-Nitro-3,4,5-trifluorobenzoyl chloride (CAS 173589-92-9)
- 3-bromo-4-chloro-2H-indazole (CAS 885521-40-4)
- 1-(3-bromo-5-chlorophenyl)ethan-1-one (CAS 154257-85-9)
- 3-bromo-5-chloro-1H-indazole (CAS 885521-43-7)
- 6-Chloro-1-((3,5-dimethylbenzyl)oxy)-2-(4-methoxyphenyl)-1H-benzo[d]imidazole (CAS 329234-99-3)
- tert-Butyl 4-chloro-2-oxoindoline-1-carboxylate (CAS 765315-28-4)
- Isoquinolin-1-ylboronic acid (CAS 1219080-58-6)
- Tiamulin-d10 Hydrochloride (CAS 1322626-74-3)
- 3-Bromo-2-fluoro-5-iodobenzaldehyde (CAS 2091143-73-4)
- tert-Butyl 3-iodo-6,7-dihydropyrazolo[1,5-a]pyrimidine-4(5H)-carboxylate (CAS 2680864-84-8)
- 1-Cyclopropyl-5-phenyl-1H-imidazol-2-amine (CAS 918801-62-4)
- n-[2-(thiophen-2-yl)ethyl]cyclohexanecarboxamide (CAS 308287-68-5)
- Dexmedetomidine Impurity 95 (CAS CATO-C4X-123095)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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