2,5-Dichloro-3-pyridinecarboxylic Acid 2,5-Dichloronicotinic Acid 59782-85-3 D4240 CAS 59782-85-3

Purity 97%+In StockPharmaceutical Standards
CAS No.59782-85-3
Molecular FormulaC6H9Cl2NO2
Molecular Weight198.05 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-Dichloro-3-pyridinecarboxylic Acid 2,5-Dichloronicotinic Acid 59782-85-3 D4240 CAS 59782-85-3 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.

2,5-Dichloro-3-pyridinecarboxylic Acid 2,5-Dichloronicotinic Acid 59782-85-3 D4240 (CAS 59782-85-3), molecular formula C6H9Cl2NO2 and molecular weight 198.05 g/mol, is a CATO reference standard with documented purity and traceability.

2,5-Dichloro-3-pyridinecarboxylic Acid 2,5-Dichloronicotinic Acid 59782-85-3 D4240 (C6H9Cl2NO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

Molecular FormulaC6H9Cl2NO2
Molecular Weight198.05 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1974
Halogen ContentCl-containing
Nitrogen Atoms1

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