3-ethyl-2-mercaptothieno[3,2-d]pyrimidin-4(3H)-one CAS 338401-79-9

Purity 97%+In StockPharmaceutical Standards
CAS No.338401-79-9
Molecular FormulaC8H8N2OS2
Molecular Weight212.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-ethyl-2-mercaptothieno[3,2-d]pyrimidin-4(3H)-one CAS 338401-79-9 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.

CATO supplies 3-ethyl-2-mercaptothieno[3,2-d]pyrimidin-4(3H)-one (CAS 338401-79-9), a certified reference material (molecular formula C8H8N2OS2, MW 212.29 g/mol) for analytical method development and quality control.

Based on its molecular formula C8H8N2OS2, 3-ethyl-2-mercaptothieno[3,2-d]pyrimidin-4(3H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 212.29 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.

CATO manufactures 3-ethyl-2-mercaptothieno[3,2-d]pyrimidin-4(3H)-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 FormulaC8H8N2OS2
Molecular Weight212.29 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2
Sulfur Atoms2

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