3-Bromo-2-chloro-5-(trifluoromethyl)pyridine CAS 71701-92-3
| CAS No. | 71701-92-3 |
| Molecular Formula | C6H2BrClF3N |
| Molecular Weight | 260.44 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-Bromo-2-chloro-5-(trifluoromethyl)pyridine.
3-Bromo-2-chloro-5-(trifluoromethyl)pyridine (CAS 71701-92-3), molecular formula C6H2BrClF3N and molecular weight 260.44 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-2-chloro-5-(trifluoromethyl)pyridine (C6H2BrClF3N) contains a nitrile group, fluorine/chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H2BrClF3N |
| Molecular Weight | 260.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 2-Bromo-6-chloro-3-(trifluoromethyl)pyridine (CAS 1076235-99-8)
- 3-Bromo-2-chloro-6-(trifluoromethyl)pyridine (CAS 1159512-34-1)
- 2-Bromo-5-chloro-4-trifluoromethyl-pyridine (CAS 1188476-72-3)
- 4-Bromo-2-chloro-6-(trifluoromethyl)pyridine (CAS 1196153-93-1)
- 4-Bromo-2-chloro-5-(trifluoromethyl)pyridine (CAS 1211520-18-1)
- 2-Bromo-3-chloro-6-(trifluoromethyl)pyridine (CAS 1211521-13-9)
- 3-Bromo-5-chloro-4-(trifluoromethyl)pyridine (CAS 1211528-99-2)
- 6-Bromo-2-chloro-3-(trifluoromethyl)pyridine (CAS 1211529-38-2)
Recommended Standards
- 2-Bromo-6-chloro-4-(trifluoromethyl)pyridine (CAS 823221-94-9)
- 3-Bromo-5-chloro-2-(trifluoromethyl)pyridine (CAS 823222-22-6)
- 2-Bromo-3-chloro-5-(trifluoromethyl)pyridine (CAS 75806-84-7)
- 5-Bromo-2-chloro-3-(trifluoromethyl)pyridine (CAS 211122-40-6)
- 2-Bromo-6-fluorobenzene-1-thiol (CAS 59594-64-8)
- Dynorphin A (1-7) (CAS 77101-32-7)
- 4-Amino-3-ethylquinazolin-2(3H)-one (CAS 477887-43-7)
- (5E)-2-Mercapto-5-(2-methoxybenzylidene)-1,3-thiazol-4(5H)-one (CAS 81154-09-8)
- 3-Nitro-4-(trifluoromethyl)benzoic Acid (CAS 116965-16-3)
- (1-(2-Chloro-4-fluorobenzyl)-1H-pyrazol-4-yl)methanol (CAS 1342150-75-7)
- 1-(3-Methoxyphenoxy)-3-(4-methylpiperidin-1-yl)propan-2-ol hydrochloride (CAS 473566-88-0)
- [4-(phenoxymethyl)phenyl]methanamine hydrochloride (CAS 1170512-40-9)
- 4,5-Dichloro-2-(isoxazol-5-yl)phenol (CAS 288401-46-7)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
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