4-bromo-2-chloro-1-(chloromethyl)benzene CAS 185315-49-5
| CAS No. | 185315-49-5 |
| Molecular Formula | C7H5BrCl2 |
| Molecular Weight | 239.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 239.92 g/mol gives 4-bromo-2-chloro-1-(chloromethyl)benzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-bromo-2-chloro-1-(chloromethyl)benzene (CAS 185315-49-5), molecular formula C7H5BrCl2 and molecular weight 239.92 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to chlorine/bromine substitution, an aromatic ring system, 4-bromo-2-chloro-1-(chloromethyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 239.92 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 4-bromo-2-chloro-1-(chloromethyl)benzene 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 | C7H5BrCl2 |
| Molecular Weight | 239.92 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.) | 2009 |
| Halogen Content | Cl/Br-containing |
Related bromo Standards
- 1-Bromo-2,5-dichloro-3-methylbenzene (CAS 1000571-63-0)
- 1-Bromo-3-chloro-5-(chloromethyl)benzene (CAS 1060812-67-0)
- 1-Bromo-3,5-dichloro-2-methylbenzene (CAS 115615-19-5)
- 1-Bromo-3-chloro-2-(chloromethyl)benzene (CAS 1242284-61-2)
- 1-Bromo-4-chloro-2-(chloromethyl)benzene (CAS 1261678-76-5)
- 1-Bromo-2-chloro-3-(chloromethyl)benzene (CAS 1261790-43-5)
- 1-Bromo-2,4-dichloro-3-methylbenzene (CAS 127049-87-0)
- 6-Bromo-2,3-dichlorotoluene (CAS 1805023-65-7)
Recommended Standards
- 4-Bromo-2,5-dichlorotoluene (CAS 1807208-46-3)
- 3,4-Dichlorobenzyl Bromide (CAS 18880-04-1)
- 4-Bromo-2,3-dichlorotoluene (CAS 1807029-15-7)
- 2-Bromo-1,3-dichloro-5-methylbenzene (CAS 19393-93-2)
- 5-(2,2-Dimethylpropyl)-1,2-oxazol-3-amine (CAS 1229454-61-8)
- Quin 2-AM (CAS 83104-85-2)
- 2-Bromo-5-chlorobenzenethiol (CAS 54404-02-3)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1,2,3,4-tetrahydroquinoline (CAS 1219967-13-1)
- 4-(3,6-Dimethylmorpholin-2-yl)benzene-1,2-diol (CAS 100370-71-6)
- (1-((5-Chlorothiophen-2-yl)methyl)cyclopropyl)methanol (CAS 1492570-45-2)
- Alectinib Impurity 57 (CAS CATO-C4X-283657)
- N-(2-Piperidin-1-ylethyl)piperidine-4-carboxamide (CAS 92031-42-0)
- 6-Bromo-2-(methylthio)quinolin-4(1H)-one (CAS 123420-05-3)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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