3-Bromo-5-methylpyridine CAS 3430-16-8
| CAS No. | 3430-16-8 |
| Molecular Formula | C6H6BrN |
| Molecular Weight | 172.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Bromo-5-methylpyridine (CAS 3430-16-8), molecular formula C6H6BrN and molecular weight 172.02 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-5-methylpyridine (C6H6BrN) contains a nitrile group, 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).
As a certified reference material (CRM), 3-Bromo-5-methylpyridine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H6BrN |
| Molecular Weight | 172.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 4-Bromo-5-methylpyridine (CAS 10168-00-0)
- 3-Bromo-4-methylpyridine (CAS 3430-22-6)
- 5-Bromo-2-picoline (CAS 3430-13-5)
- 2-Bromo-1H-imidazole-5-carbonitrile (CAS 1067894-55-6)
- 4-Bromo-1H-imidazole-2-carbonitrile (CAS 120118-03-8)
- 5-Bromo-1H-pyrazole-4-carbonitrile (CAS 1703808-52-9)
- 5-Bromo-1H-pyrazole-3-carbonitrile (CAS 1934269-82-5)
- 4-Bromo-1H-imidazole-5-carbonitrile (CAS 586965-53-9)
Recommended Standards
- Vortioxetine Impurity 30 (CAS 615-36-1)
- 3-bromocyclopent-1-ene-1-carbonitrile (CAS 74201-92-6)
- Erlotinib Impurity 40 (CAS 591-19-5)
- Phloroglucinol Impurity 22 (CAS 106-40-1)
- N-Boc-2-piperidineacetic Acid (CAS 149518-50-3)
- 2-[2-(methoxymethoxy)-4-methylphenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 517864-11-8)
- 2-Mercapto-3-(3-methylpyridin-2-yl)quinazolin-4(3h)-one (CAS 855715-11-6)
- 4-Oxo-5,10-dihydro-4H-benzo[e]pyrazolo[1,5-a][1,4]diazepine-2-carboxylic acid (CAS 87592-06-1)
- tert-Butyl 2-(p-tolyl)acetate (CAS 33155-60-1)
- 3,4,5-Tribromo-1H-pyrrole-2-carbonitrile (CAS 130511-67-0)
- Dichlorobis(tributylphosphine)nickel(II) (CAS 15274-43-8)
- 4-Chloro-3,5-dimethyl-2-nitrophenol (CAS 54582-90-0)
- 2-(6-Chloropyridin-2-yl)hydrazine-1-carboxamide (CAS 320415-91-6)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com