5-Methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid CAS 101667-97-4

Purity 97%+In StockPharmaceutical Standards
CAS No.101667-97-4
Molecular FormulaC8H6N2O3S
Molecular Weight210.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid CAS 101667-97-4 chemical structure

Description

CATO supplies 5-Methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid (CAS 101667-97-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H6N2O3S. Molecular weight: 210.21 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC8H6N2O3S
Molecular Weight210.21 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms2
Sulfur Atoms1

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