2,3-Dibromo-5-(trifluoromethyl)pyridine CAS 79623-38-4
| CAS No. | 79623-38-4 |
| Molecular Formula | C6H2Br2F3N |
| Molecular Weight | 304.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3-Dibromo-5-(trifluoromethyl)pyridine (CAS 79623-38-4), molecular formula C6H2Br2F3N and molecular weight 304.89 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, fluorine/bromine substitution, an aromatic ring system, 2,3-Dibromo-5-(trifluoromethyl)pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 304.89 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C6H2Br2F3N |
| Molecular Weight | 304.89 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 |
| 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.) | 1979 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 2,6-Dibromo-4-(trifluoromethyl)pyridine (CAS 1000152-84-0)
- 2,5-Dibromo-4-(trifluoromethyl)pyridine (CAS 1099597-94-0)
- 2,3-Dibromo-4-(trifluoromethyl)pyridine (CAS 1099598-01-2)
- 2,3-Dibromo-6-(trifluoromethyl)pyridine (CAS 1159512-35-2)
- 2,4-Dibromo-6-(trifluoromethyl)pyridine (CAS 1211539-45-5)
- 3,6-Dibromo-2-(trifluoromethyl)pyridine (CAS 1211588-54-3)
- 3,4-Dibromo-2-(trifluoromethyl)pyridine (CAS 1227572-24-8)
- 2,4-Dibromo-3-(trifluoromethyl)pyridine (CAS 1227582-03-7)
Recommended Standards
- 4,5-Dibromo-3-(difluoromethyl)-2-fluoropyridine (CAS 1806878-32-9)
- 2,5-Dibromo-3-(trifluoromethyl)pyridine (CAS 79623-39-5)
- 2,3-Dibromo-4-(difluoromethyl)-5-fluoropyridine (CAS 1806877-86-0)
- 2,5-Dibromo-3,4,6-trifluoroaniline (CAS 232267-32-2)
- N-(4-Methylthiazol-2-yl)-2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide (CAS 852372-78-2)
- 4-Bromo-3-fluoro-N-isobutylbenzamide (CAS 1250671-65-8)
- 8-methyl-3,4-dihydro-2H-1-benzopyran-3-amine hydrochloride (CAS 1803601-90-2)
- (R)-1-(4-(difluoromethyl)-3-fluorophenyl)propan-1-amine (CAS 1213439-15-6)
- 9-(Piperidin-4-yl)-9H-purine (CAS 830331-58-3)
- 4-(Dimethylamino)-2-hydroxynicotinonitrile (CAS 62321-91-9)
- Cimetidine Impurity 12 (CAS 75850-09-8)
- (s)-2-Amino-2-(4,5-difluoro-2-methoxyphenyl)ethan-1-ol (CAS 1213162-01-6)
- 3,4-Dimethoxy-2-nitrobenzonitrile (CAS 1175636-14-2)
- Liraglutide(13-31)TFA Salt (CAS CATO-C4X-19929)
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