2-Mercapto-3-methyl-6-phenyl-3H-thieno[2,3-d]pyrimidin-4-one CAS 851398-42-0

Purity 97%+In StockPharmaceutical Standards
CAS No.851398-42-0
Molecular FormulaC13H10N2OS2
Molecular Weight274.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Mercapto-3-methyl-6-phenyl-3H-thieno[2,3-d]pyrimidin-4-one CAS 851398-42-0 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.

2-Mercapto-3-methyl-6-phenyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 851398-42-0), molecular formula C13H10N2OS2 and molecular weight 274.36 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 2-Mercapto-3-methyl-6-phenyl-3H-thieno[2,3-d]pyrimidin-4-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 274.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

CATO manufactures 2-Mercapto-3-methyl-6-phenyl-3H-thieno[2,3-d]pyrimidin-4-one 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 FormulaC13H10N2OS2
Molecular Weight274.36 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms2
Sulfur Atoms2

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