7,9-Dimethyl-2-((4-methylbenzyl)thio)-4-(phenylthio)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine CAS 672950-73-1

Description

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

7,9-Dimethyl-2-((4-methylbenzyl)thio)-4-(phenylthio)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine (CAS 672950-73-1), molecular formula C25H21N3S3 and molecular weight 459.65 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C25H21N3S3, 7,9-Dimethyl-2-((4-methylbenzyl)thio)-4-(phenylthio)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 459.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

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