2,3-Dihydro-3-methyl-5-(2-thienyl)-2-thioxothieno[2,3-d]pyrimidin-4(1H)-one CAS 257870-39-6

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.

2,3-Dihydro-3-methyl-5-(2-thienyl)-2-thioxothieno[2,3-d]pyrimidin-4(1H)-one (CAS 257870-39-6), molecular formula C11H8N2OS3 and molecular weight 280.39 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2,3-Dihydro-3-methyl-5-(2-thienyl)-2-thioxothieno[2,3-d]pyrimidin-4(1H)-one (C11H8N2OS3) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 280.39 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), 2,3-Dihydro-3-methyl-5-(2-thienyl)-2-thioxothieno[2,3-d]pyrimidin-4(1H)-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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com