Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-carboxylate CAS 1388893-76-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1388893-76-2
Molecular FormulaC12H12N2O3S
Molecular Weight264.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-carboxylate CAS 1388893-76-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-carboxylate.

Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-carboxylate (CAS 1388893-76-2) is a high-purity analytical reference standard with the molecular formula C12H12N2O3S and a molecular weight of 264.30 g/mol.

Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-carboxylate (C12H12N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-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.

Physical & Chemical Properties

Molecular FormulaC12H12N2O3S
Molecular Weight264.30 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms2
Sulfur Atoms1

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