Methyl 4-oxo-5-(thiophen-2-ylmethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-3-carboxylate CAS 685106-59-6

Purity 97%+In StockPharmaceutical Standards
CAS No.685106-59-6
Molecular FormulaC13H13N3O3S
Molecular Weight291.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 4-oxo-5-(thiophen-2-ylmethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-3-carboxylate CAS 685106-59-6 chemical structure

Description

CATO manufactures Methyl 4-oxo-5-(thiophen-2-ylmethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-3-carboxylate 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.

Methyl 4-oxo-5-(thiophen-2-ylmethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-3-carboxylate (CAS 685106-59-6), molecular formula C13H13N3O3S and molecular weight 291.33 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C13H13N3O3S, Methyl 4-oxo-5-(thiophen-2-ylmethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-3-carboxylate 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 291.33 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.

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 FormulaC13H13N3O3S
Molecular Weight291.33 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms3
Sulfur Atoms1

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