3-Bromo-4-iodopyridine CAS 89167-19-1

Purity 97%+In StockPharmaceutical Standards
CAS No.89167-19-1
Molecular FormulaC5H3BrIN
Molecular Weight283.89 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Bromo-4-iodopyridine CAS 89167-19-1 chemical structure

Description

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.

3-Bromo-4-iodopyridine (CAS 89167-19-1), molecular formula C5H3BrIN and molecular weight 283.89 g/mol, is a CATO reference standard with documented purity and traceability.

3-Bromo-4-iodopyridine (C5H3BrIN) contains a nitrile group, bromine/iodine substitution. 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.

Physical & Chemical Properties

Molecular FormulaC5H3BrIN
Molecular Weight283.89 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1982
Halogen ContentBr/I-containing
Nitrogen Atoms1

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Why CATO?