6-ethyl-3-methyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one CAS 733015-18-4

Purity 97%+In StockPharmaceutical Standards
CAS No.733015-18-4
Molecular FormulaC9H16N2OS2
Molecular Weight232.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-ethyl-3-methyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one CAS 733015-18-4 chemical structure

Description

6-ethyl-3-methyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one (C9H16N2OS2) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

6-ethyl-3-methyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 733015-18-4), molecular formula C9H16N2OS2 and molecular weight 232.37 g/mol, is a CATO reference standard with documented purity and traceability.

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.

As a certified reference material (CRM), 6-ethyl-3-methyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC9H16N2OS2
Molecular Weight232.37 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1986
Nitrogen Atoms2
Sulfur Atoms2

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