5,6-Dimethyl-3-(m-tolyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione CAS 1019008-75-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1019008-75-3
Molecular FormulaC15H14N2O2S
Molecular Weight286.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,6-Dimethyl-3-(m-tolyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione CAS 1019008-75-3 chemical structure

Description

CATO supplies 5,6-Dimethyl-3-(m-tolyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 1019008-75-3), a certified reference material (molecular formula C15H14N2O2S, MW 286.35 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 5,6-Dimethyl-3-(m-tolyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 286.35 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).

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.

CATO manufactures 5,6-Dimethyl-3-(m-tolyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione 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 FormulaC15H14N2O2S
Molecular Weight286.35 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.)1988
Nitrogen Atoms2
Sulfur Atoms1

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