2,4-Difluoro-6-methylbenzyl bromide CAS 1803735-07-0
| CAS No. | 1803735-07-0 |
| Molecular Formula | C8H7BrF2 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2,4-Difluoro-6-methylbenzyl bromide (CAS 1803735-07-0), molecular formula C8H7BrF2 and molecular weight 221.04 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H7BrF2, 2,4-Difluoro-6-methylbenzyl bromide contains fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 221.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1995 |
| Halogen Content | F/Br-containing |
Related Difluoro Standards
- 2,5-Difluoro-4-methylbenzylbromide (CAS 1515657-97-2)
- 2,3-Difluoro-6-methylbenzyl bromide (CAS 1803813-37-7)
- 4,5-Difluoro-2-methylbenzyl bromide (CAS 1803813-70-8)
- 3,6-Difluoro-2-methylbenzyl bromide (CAS 1803825-88-8)
- 2,5-Difluoro-3-methylbenzyl bromide (CAS 1804417-86-4)
- 3,4-Difluoro-5-methylbenzyl bromide (CAS 1804417-98-8)
- 3,3-Difluoro-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)propan-1-amine hydrochloride (CAS 319009-96-6)
- 2-(2,3-Difluoro-4-(trifluoromethyl)phenyl)acetonitrile (CAS 240800-44-6)
Recommended Standards
- Ethyl 2,5-dichloropyrimidine-4-carboxylate (CAS 1771743-37-3)
- 4-(2-Bromoethyl)-1,2-difluorobenzene (CAS 175018-77-6)
- Methyl 2-(4,6-dichloropyrimidin-5-yl)acetate (CAS 171096-33-6)
- methyl 3-amino-5,6-dichloropyridine-2-carboxylate (CAS 169037-29-0)
- (2-Fluoro-1,3-thiazol-4-yl)methanol (CAS 153027-87-3)
- Methyl 4-amino-2-chloro-5-formylbenzoate (CAS 2055354-66-8)
- Cistanoside A (CAS 93236-42-1)
- 2-(8-Oxo-5,6,7,8-tetrahydronaphthalen-2-yl)acetic acid (CAS 125564-50-3)
- cis-cyclohexane-1,4-dicarbonitrile (CAS 6550-96-5)
- 7-Chloro-2-(trifluoromethyl)-1H-benzo[d]imidazole (CAS 2338-31-0)
- 3-(3-Ethoxy-4-methoxyphenyl)prop-2-en-1-ol (CAS 1563743-10-1)
- 3,4-MDMA methylene homolog hydrochloride (CAS 1797883-86-3)
- 5-(2,2,2-Trifluoroethyl)isoxazole-3-carboxylic acid (CAS 1936494-76-6)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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