3-(3,4-Dimethoxyphenethyl)-2-mercapto-3,5,6,7-tetrahydro-4h-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one CAS 735322-59-5

Purity 97%+In StockPharmaceutical Standards
CAS No.735322-59-5
Molecular FormulaC19H20N2O3S2
Molecular Weight388.50 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(3,4-Dimethoxyphenethyl)-2-mercapto-3,5,6,7-tetrahydro-4h-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one CAS 735322-59-5 chemical structure

Description

3-(3,4-Dimethoxyphenethyl)-2-mercapto-3,5,6,7-tetrahydro-4h-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 735322-59-5), molecular formula C19H20N2O3S2 and molecular weight 388.50 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C19H20N2O3S2, 3-(3,4-Dimethoxyphenethyl)-2-mercapto-3,5,6,7-tetrahydro-4h-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one contains a steroid core, 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 388.50 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.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 3-(3,4-Dimethoxyphenethyl)-2-mercapto-3,5,6,7-tetrahydro-4h-cyclopenta[4,5]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 FormulaC19H20N2O3S2
Molecular Weight388.50 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms2
Sulfur Atoms2

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