3-Ethyl-2-((2-(indolin-1-yl)-2-oxoethyl)thio)-6-methyl-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one CAS 851409-24-0

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Ethyl-2-((2-(indolin-1-yl)-2-oxoethyl)thio)-6-methyl-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one.

3-Ethyl-2-((2-(indolin-1-yl)-2-oxoethyl)thio)-6-methyl-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one (CAS 851409-24-0) is a high-purity analytical reference standard with the molecular formula C19H21N3O2S2 and a molecular weight of 387.52 g/mol.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 3-Ethyl-2-((2-(indolin-1-yl)-2-oxoethyl)thio)-6-methyl-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 387.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

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

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