Ethyl 7-methyl-5-(4-(methylthio)phenyl)-3-oxo-2-(3-phenylallylidene)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate CAS 6997-60-0

Purity 97%+In StockPharmaceutical Standards
CAS No.6997-60-0
Molecular FormulaC26H24N2O3S2
Molecular Weight476.61 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 7-methyl-5-(4-(methylthio)phenyl)-3-oxo-2-(3-phenylallylidene)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate CAS 6997-60-0 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 7-methyl-5-(4-(methylthio)phenyl)-3-oxo-2-(3-phenylallylidene)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate.

Ethyl 7-methyl-5-(4-(methylthio)phenyl)-3-oxo-2-(3-phenylallylidene)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 6997-60-0), molecular formula C26H24N2O3S2 and molecular weight 476.61 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ethyl 7-methyl-5-(4-(methylthio)phenyl)-3-oxo-2-(3-phenylallylidene)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 476.61 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).

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.

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

Molecular FormulaC26H24N2O3S2
Molecular Weight476.61 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms2
Sulfur Atoms2

Recommended Standards

Why CATO?