2,4-Dibromo-3,5-difluorotoluene CAS 1803783-73-4
| CAS No. | 1803783-73-4 |
| Molecular Formula | C7H4Br2F2 |
| Molecular Weight | 285.91 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 2,4-Dibromo-3,5-difluorotoluene.
CATO supplies 2,4-Dibromo-3,5-difluorotoluene (CAS 1803783-73-4), a certified reference material (molecular formula C7H4Br2F2, MW 285.91 g/mol) for analytical method development and quality control.
Owing to fluorine/bromine substitution, an aromatic ring system, 2,4-Dibromo-3,5-difluorotoluene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 285.91 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.
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.
Physical & Chemical Properties
| Molecular Formula | C7H4Br2F2 |
| Molecular Weight | 285.91 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 Dibromo Standards
- 1,3-Dibromo-2-(difluoromethyl)benzene (CAS 1184298-00-7)
- 2,4-Dibromo-1-(difluoromethyl)benzene (CAS 1214352-24-5)
- 1,2-Dibromo-4-(difluoromethyl)benzene (CAS 1214358-09-4)
- 1,4-Dibromo-2-(difluoromethyl)benzene (CAS 1214383-36-4)
- 1,3-Dibromo-5-(difluoromethyl)benzene (CAS 1214388-74-5)
- 2,5-Dibromo-3,6-difluorotoluene (CAS 1803776-06-8)
- 4,5-Dibromo-2,3-difluorotoluene (CAS 1803783-79-0)
- 1,2-Dibromo-3-fluoro-6-(fluoromethyl)benzene (CAS 1803785-00-3)
Recommended Standards
- 2-Bomo-3,4-dichloro-6-nitroaniline (CAS 172215-93-9)
- 4-Bromo-2,6-difluorobenzyl Bromide (CAS 162744-60-7)
- 2,6-Dibromo-3,4-difluorotoluene (CAS 1804414-94-5)
- 1-Bromo-4-(bromomethyl)-2,3-difluorobenzene (CAS 162744-56-1)
- 3-(Ethylsulfonyl)pyrazolo[1,5-a]pyrimidin-6-amine (CAS 1708260-79-0)
- 5-Bromo-2,2 inverted exclamation mark -bithiophene 3480-11-3 MFCD01461947 SY033575 (CAS 3480-11-3)
- 4-(phenylmethylidene)piperidine (CAS 164650-58-2)
- Methyl (S)-2-amino-3-(2-methoxypyridin-4-yl)propanoate (CAS 1213344-75-2)
- 2-Hexyl-2,4,5,6-tetrahydrocyclopenta[c]pyrrole (CAS 811784-22-2)
- 2-[4-(4-tert-Butylbenzenesulfonyl)piperazin-1-yl]pyrimidine (CAS 866153-26-6)
- 2-Bromo-5-methylquinoline (CAS 1420790-04-0)
- Naproxen Impurity 2 (CAS 60756-73-2)
- (4-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl)methanamine (CAS 1036532-71-4)
- Des-Pro31-Tirzepatide (CAS CATO-CPTD788943)
Why CATO?
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