2-Bromo-1-(chloromethyl)-4-methylbenzene CAS 147542-02-7
| CAS No. | 147542-02-7 |
| Molecular Formula | C8H8BrCl |
| Molecular Weight | 219.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Bromo-1-(chloromethyl)-4-methylbenzene (CAS 147542-02-7), molecular formula C8H8BrCl and molecular weight 219.51 g/mol, is a CATO reference standard with documented purity and traceability.
2-Bromo-1-(chloromethyl)-4-methylbenzene (C8H8BrCl) contains 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-Bromo-1-(chloromethyl)-4-methylbenzene 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 | C8H8BrCl |
| Molecular Weight | 219.51 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 |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 2-Bromo-5-chloro-m-xylene (CAS 103724-99-8)
- 3-Bromo-5-methylbenzyl chloride (CAS 1056893-13-0)
- 1-Bromo-4-chloro-2-ethylbenzene (CAS 1160573-89-6)
- 2-Bromo-4-chloro-1,3-dimethylbenzene (CAS 1208077-17-1)
- 1-Bromo-3-(chloromethyl)-2-methylbenzene (CAS 1261449-18-6)
- 2-Bromo-1-(chloromethyl)-3-methylbenzene (CAS 1261520-36-8)
- 4-Bromo-2-chloro-1-ethylbenzene (CAS 1310948-67-4)
- 2-Bromo-4-chloro-1-ethylbenzene (CAS 1345036-19-2)
Recommended Standards
- 1-bromo-2-chloro-4-ethylbenzene (CAS 1369951-03-0)
- 1-bromo-4-(chloromethyl)-2-methylbenzene (CAS 149104-97-2)
- 2-bromo-1-chloro-3-ethylbenzene (CAS 1369922-30-4)
- 2-Chlorophenethyl Bromide (CAS 16793-91-2)
- 10-METHYL-1,2,3,4,4A,5-HEXAHYDROBENZO[B]PYRAZINO[1,2-D][1,4]DIAZEPIN-6(7H)-ONE (CAS 1252650-37-5)
- 9-([1,1'-Biphenyl]-4-yl)-3-(4-chlorophenyl)-9H-carbazole (CAS 1219821-48-3)
- 1-((4-Fluorophenyl)sulfonyl)pyrrolidine-2-carboxylic acid (CAS 251096-96-5)
- 4-(butan-2-yl)-1,3-thiazol-2-amine (CAS 79932-24-4)
- Lurasidone Impurity 18 (CAS 4430-91-5)
- 2-hydroxy-N-(2-hydroxyethyl)acetamide (CAS 3586-25-2)
- 3-(Bromomethyl)-1-ethoxy-5-methylhexane (CAS 1495403-27-4)
- 1-Ethyl-5-methyl-4-((phenylsulfonyl)methyl)-1,3-dihydro-2H-imidazol-2-one (CAS 478249-70-6)
- 4-(Benzylthio)-5-chloropyridine-3-sulfonamide (CAS 1352525-78-0)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
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