1-Methyl-3-phenyl-1h-thieno[2,3-c]pyrazole-5-carboxylic acid CAS 25252-47-5

Purity 97%+In StockPharmaceutical Standards
CAS No.25252-47-5
Molecular FormulaC13H10N2O2S
Molecular Weight258.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Methyl-3-phenyl-1h-thieno[2,3-c]pyrazole-5-carboxylic acid CAS 25252-47-5 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.

1-Methyl-3-phenyl-1h-thieno[2,3-c]pyrazole-5-carboxylic acid (CAS 25252-47-5) is a high-purity analytical reference standard with the molecular formula C13H10N2O2S and a molecular weight of 258.30 g/mol.

1-Methyl-3-phenyl-1h-thieno[2,3-c]pyrazole-5-carboxylic acid (C13H10N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 1-Methyl-3-phenyl-1h-thieno[2,3-c]pyrazole-5-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC13H10N2O2S
Molecular Weight258.30 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Nitrogen Atoms2
Sulfur Atoms1

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