2-(Ethylthio)-7,9-dimethyl-4-(p-tolyloxy)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine CAS 439111-34-9

Purity 97%+In StockPharmaceutical Standards
CAS No.439111-34-9
Molecular FormulaC20H19N3OS2
Molecular Weight381.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Ethylthio)-7,9-dimethyl-4-(p-tolyloxy)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine CAS 439111-34-9 chemical structure

Description

CATO manufactures 2-(Ethylthio)-7,9-dimethyl-4-(p-tolyloxy)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

2-(Ethylthio)-7,9-dimethyl-4-(p-tolyloxy)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine (CAS 439111-34-9) is a high-purity analytical reference standard with the molecular formula C20H19N3OS2 and a molecular weight of 381.51 g/mol.

The molecular framework of 2-(Ethylthio)-7,9-dimethyl-4-(p-tolyloxy)pyrido[3',2':4,5]thieno[3,2-d]pyrimidine (C20H19N3OS2) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. 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).

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 FormulaC20H19N3OS2
Molecular Weight381.51 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms3
Sulfur Atoms2

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