4-Bromo-3-iodopyridine CAS 89167-20-4
| CAS No. | 89167-20-4 |
| Molecular Formula | C5H3BrIN |
| Molecular Weight | 283.89 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.
4-Bromo-3-iodopyridine (CAS 89167-20-4), molecular formula C5H3BrIN and molecular weight 283.89 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, bromine/iodine substitution, 4-Bromo-3-iodopyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 283.89 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures 4-Bromo-3-iodopyridine 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 | C5H3BrIN |
| Molecular Weight | 283.89 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, 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 |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 4-Bromo-2-iodopyridine (CAS 100523-83-9)
- 2-Bromo-4-iodopyridine (CAS 100523-96-4)
- 2-Bromo-3-iodopyridine (CAS 265981-13-3)
- 2-Bromo-6-iodopyridine (CAS 234111-08-1)
- 3-Bromo-2-iodopyridine (CAS 408502-43-2)
- 3-Bromo-4-iodopyridine (CAS 89167-19-1)
- 5-bromo-3-(bromomethyl)furan-2-carboxylic acid (CAS 2385341-97-7)
- 5-Bromo-2-(bromomethyl)-4-fluorophenol (CAS 1805590-08-2)
Recommended Standards
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