3-Chloropyrazolo[1,5-a]pyridine-2-carboxylic acid CAS 876379-78-1

Purity 97%+In StockPharmaceutical Standards
CAS No.876379-78-1
Molecular FormulaC8H5ClN2O2
Molecular Weight196.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Chloropyrazolo[1,5-a]pyridine-2-carboxylic acid CAS 876379-78-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 196.59 g/mol gives 3-Chloropyrazolo[1,5-a]pyridine-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Chloropyrazolo[1,5-a]pyridine-2-carboxylic acid (CAS 876379-78-1), molecular formula C8H5ClN2O2 and molecular weight 196.59 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-Chloropyrazolo[1,5-a]pyridine-2-carboxylic acid (C8H5ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 196.59 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 3-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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