1-(Bromomethyl)-2,4-difluoro-5-methylbenzene CAS 315204-37-6
| CAS No. | 315204-37-6 |
| Molecular Formula | C8H7BrF2 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(Bromomethyl)-2,4-difluoro-5-methylbenzene (CAS 315204-37-6), molecular formula C8H7BrF2 and molecular weight 221.04 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/bromine substitution, an aromatic ring system, 1-(Bromomethyl)-2,4-difluoro-5-methylbenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.04 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), 1-(Bromomethyl)-2,4-difluoro-5-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 | C8H7BrF2 |
| Molecular Weight | 221.04 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.) | 2025 |
| Halogen Content | F/Br-containing |
Related Bromomethyl Standards
- 1-(Bromomethyl)-2-(difluoromethyl)benzene (CAS 1222556-61-7)
- 2-(Bromomethyl)-1,3-difluoro-5-methylbenzene (CAS 1337606-87-7)
- 5-(Bromomethyl)-1,3-difluoro-2-methylbenzene (CAS 1803833-70-6)
- 1-(Bromomethyl)-2,3-difluoro-5-methylbenzene (CAS 1806333-01-6)
- 1-(Bromomethyl)-2,3-difluoro-4-methylbenzene (CAS 261763-43-3)
- 1-(Bromomethyl)-3,5-difluoro-2-methylbenzene (CAS 869721-04-0)
- 1-(BROMOMETHYL)-4-(DIFLUOROMETHYL)BENZENE (CAS 873373-34-3)
- 2 - Bromomethyl - 1,3 - difluoro - 4 - methyl - benzene 2,6-Difluoro-3-methylbenzyl bromide 2-(bromomethyl)-1,3-difluoro-4-methylbenzene 261763-44-4 benzene, 2-(bromomethyl)-1,3-difluoro-4-methyl- (CAS 261763-44-4)
Recommended Standards
- 1-(2-Iodoethyl)-1H-pyrrole (CAS 85801-33-8)
- 1-(2-Bromoethyl)-3,5-difluorobenzene (CAS 958027-90-2)
- 1-Bromo-2-(1,1-difluoroethyl)benzene (CAS 444581-46-8)
- 1-(2-Bromoethyl)-2,4-difluorobenzene (CAS 214618-54-9)
- 3,4-dichlorofuran-2-carboxylic acid (CAS 69727-40-8)
- cis-2,4-dimethylazetidine;hydrochloride (CAS 2231663-46-8)
- 2-(Phenethylthio)-5-(3-(piperidin-1-ylsulfonyl)phenyl)-1,3,4-oxadiazole (CAS 873814-02-9)
- 1-Iodo-4-methylpentane (CAS 6196-80-1)
- 2-Bromo-3-methoxy-4-(trifluoromethoxy)aniline (CAS 1805568-90-4)
- 4-(Naphthalen-1-yl)butanoic acid (CAS 781-74-8)
- 6-Amino-5-fluoronicotinonitrile (CAS 1361058-62-9)
- 3-Hydroxymethyl Maraviroc (CAS 1217535-55-1)
- 4-Bromo-2-chloro-5-methylanisole (CAS 179897-95-1)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
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