6-Chloropyrazolo[1,5-a]pyridine-2-carboxylic Acid CAS 876379-75-8

Purity 97%+In StockPharmaceutical Standards
CAS No.876379-75-8
Molecular FormulaC8H5ClN2O2
Molecular Weight196.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Chloropyrazolo[1,5-a]pyridine-2-carboxylic Acid CAS 876379-75-8 chemical structure

Description

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.

6-Chloropyrazolo[1,5-a]pyridine-2-carboxylic Acid (CAS 876379-75-8), molecular formula C8H5ClN2O2 and molecular weight 196.59 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H5ClN2O2, 6-Chloropyrazolo[1,5-a]pyridine-2-carboxylic Acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 196.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), 6-Chloropyrazolo[1,5-a]pyridine-2-carboxylic Acid 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 FormulaC8H5ClN2O2
Molecular Weight196.59 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 DMSO, DMF, methanol
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms2

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