4-Methyl-1-((2-methylbenzyl)thio)thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one CAS 1189984-73-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1189984-73-3
Molecular FormulaC16H14N4OS2
Molecular Weight342.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methyl-1-((2-methylbenzyl)thio)thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one CAS 1189984-73-3 chemical structure

Description

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.

CATO supplies 4-Methyl-1-((2-methylbenzyl)thio)thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one (CAS 1189984-73-3), a certified reference material (molecular formula C16H14N4OS2, MW 342.44 g/mol) for analytical method development and quality control.

Structurally, 4-Methyl-1-((2-methylbenzyl)thio)thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one (C16H14N4OS2) 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 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 342.44 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

Physical & Chemical Properties

Molecular FormulaC16H14N4OS2
Molecular Weight342.44 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms4
Sulfur Atoms2

Related Methyl Standards

Recommended Standards

Why CATO?