2(1H)-PYRIDINONE, 5-CHLORO- 2-HYDROXY-5-CHLOROPYRIDINE 3-CHLORO-6-HYDROXYPYRIDINE 4214-79-3 5-CHLORO-2-PYRIDINOL 5-Chloro-2-hydroxypyridine AS04939 CAS 4214-79-3

Purity 97%+In StockPharmaceutical Standards
CAS No.4214-79-3
Molecular FormulaC5H10ClNO
Molecular Weight135.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2(1H)-PYRIDINONE, 5-CHLORO- 2-HYDROXY-5-CHLOROPYRIDINE 3-CHLORO-6-HYDROXYPYRIDINE 4214-79-3 5-CHLORO-2-PYRIDINOL 5-Chloro-2-hydroxypyridine AS04939 CAS 4214-79-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2(1H)-PYRIDINONE, 5-CHLORO- 2-HYDROXY-5-CHLOROPYRIDINE 3-CHLORO-6-HYDROXYPYRIDINE 4214-79-3 5-CHLORO-2-PYRIDINOL 5-Chloro-2-hydroxypyridine AS04939.

2(1H)-PYRIDINONE, 5-CHLORO- 2-HYDROXY-5-CHLOROPYRIDINE 3-CHLORO-6-HYDROXYPYRIDINE 4214-79-3 5-CHLORO-2-PYRIDINOL 5-Chloro-2-hydroxypyridine AS04939 (CAS 4214-79-3), molecular formula C5H10ClNO and molecular weight 135.59 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2(1H)-PYRIDINONE, 5-CHLORO- 2-HYDROXY-5-CHLOROPYRIDINE 3-CHLORO-6-HYDROXYPYRIDINE 4214-79-3 5-CHLORO-2-PYRIDINOL 5-Chloro-2-hydroxypyridine AS04939 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 135.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC5H10ClNO
Molecular Weight135.59 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Nitrogen Atoms1

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