2-Ethyl-4-(((2-methylthiazol-4-yl)methyl)thio)-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine CAS 690643-70-0

Purity 97%+In StockPharmaceutical Standards
CAS No.690643-70-0
Molecular FormulaC16H17N3S3
Molecular Weight347.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Ethyl-4-(((2-methylthiazol-4-yl)methyl)thio)-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine CAS 690643-70-0 chemical structure

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.

CATO supplies 2-Ethyl-4-(((2-methylthiazol-4-yl)methyl)thio)-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 690643-70-0), a certified reference material (molecular formula C16H17N3S3, MW 347.52 g/mol) for analytical method development and quality control.

The molecular framework of 2-Ethyl-4-(((2-methylthiazol-4-yl)methyl)thio)-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (C16H17N3S3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC16H17N3S3
Molecular Weight347.52 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms3
Sulfur Atoms3

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