2-Chloro-3-nitropyridin-4-ol CAS 629655-23-8

Purity 97%+In StockPharmaceutical Standards
CAS No.629655-23-8
Molecular FormulaC5H3ClN2O3
Molecular Weight174.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloro-3-nitropyridin-4-ol CAS 629655-23-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 174.54 g/mol gives 2-Chloro-3-nitropyridin-4-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Chloro-3-nitropyridin-4-ol (CAS 629655-23-8) is a high-purity analytical reference standard with the molecular formula C5H3ClN2O3 and a molecular weight of 174.54 g/mol.

Based on its molecular formula C5H3ClN2O3, 2-Chloro-3-nitropyridin-4-ol contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 174.54 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.

As a certified reference material (CRM), 2-Chloro-3-nitropyridin-4-ol 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 FormulaC5H3ClN2O3
Molecular Weight174.54 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1985
Halogen ContentCl-containing
Nitrogen Atoms2

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