2-Chloro-4-fluoropyridine CAS 34941-91-8

Purity 97%+In StockPharmaceutical Standards
CAS No.34941-91-8
Molecular FormulaC5H3ClFN
Molecular Weight131.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloro-4-fluoropyridine CAS 34941-91-8 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.

2-Chloro-4-fluoropyridine (CAS 34941-91-8) is a high-purity analytical reference standard with the molecular formula C5H3ClFN and a molecular weight of 131.54 g/mol.

Based on its molecular formula C5H3ClFN, 2-Chloro-4-fluoropyridine contains a nitrile group, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 131.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 FormulaC5H3ClFN
Molecular Weight131.54 g/mol
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.)1966
Halogen ContentF/Cl-containing
Nitrogen Atoms1

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