3,4-Difluoro-5-methylbenzyl bromide CAS 1804417-98-8
| CAS No. | 1804417-98-8 |
| Molecular Formula | C8H7BrF2 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,4-Difluoro-5-methylbenzyl bromide.
3,4-Difluoro-5-methylbenzyl bromide (CAS 1804417-98-8), 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, 3,4-Difluoro-5-methylbenzyl bromide 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3,4-Difluoro-5-methylbenzyl bromide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring 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)
- 2,4-Difluoro-6-methylbenzyl bromide (CAS 1803735-07-0)
- 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)
- 3,3-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
- (3,4-Dichloro-2-nitrophenyl)methanamine (CAS 1804897-45-7)
- 5-(Bromomethyl)-1,3-difluoro-2-methylbenzene (CAS 1803833-70-6)
- Methyl 4-amino-5,6-dichloronicotinate (CAS 1805482-43-2)
- Methyl 5-amino-4,6-dichloropicolinate (CAS 1805930-73-7)
- 3,5-Dimethyl-4,5-dihydroisoxazol-5-amine (CAS 133329-05-2)
- 2-(Chloromethyl)-3-cyano-5-(difluoromethyl)-6-fluoropyridine (CAS 1804489-97-1)
- 5-Chloro-3-methyl-1-(2-methylpropyl)-1h-pyrazole-4-carbaldehyde (CAS 956780-60-2)
- Ethyl 2,3-dihydropyrazolo[5,1-b]oxazole-7-carboxylate (CAS 2073912-30-6)
- N-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methanesulfonamide (CAS 1201643-71-1)
- 5-(Chloromethyl)-1,3-dimethyl-1H-1,2,4-triazole (CAS 84804-69-3)
- 5-(2,4-Dichloro-5-fluorophenyl)-1,3,4-oxadiazole-2(3H)-thione (CAS 849132-72-5)
- (2R,3R)-4-((4-fluorophenyl)amino)-2,3-dihydroxy-4-oxobutanoic acid (CAS 206761-65-1)
- (1R,2S,3R,4S)-3-Mercapto-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ol (CAS 132609-85-9)
- Palmitoyl Tripeptide-5 TFA (CAS 623172-55-4（free base）)
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