1-methyl-4-(2-thienyl)-1{H}-pyrazolo[3,4-{b}]pyridine-3-carboxylic acid CAS 1356543-40-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1356543-40-2
Molecular FormulaC12H9N3O2S
Molecular Weight259.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-methyl-4-(2-thienyl)-1{H}-pyrazolo[3,4-{b}]pyridine-3-carboxylic acid CAS 1356543-40-2 chemical structure

Description

Based on its molecular formula C12H9N3O2S, 1-methyl-4-(2-thienyl)-1{H}-pyrazolo[3,4-{b}]pyridine-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 259.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

1-methyl-4-(2-thienyl)-1{H}-pyrazolo[3,4-{b}]pyridine-3-carboxylic acid (CAS 1356543-40-2) is a high-purity analytical reference standard with the molecular formula C12H9N3O2S and a molecular weight of 259.28 g/mol.

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.

As a certified reference material (CRM), 1-methyl-4-(2-thienyl)-1{H}-pyrazolo[3,4-{b}]pyridine-3-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 FormulaC12H9N3O2S
Molecular Weight259.28 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.)1991
Nitrogen Atoms3
Sulfur Atoms1

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