2,5,6-trimethyl-3H,4H-thieno[2,3-d]pyrimidin-4-one CAS 18593-45-8

Purity 97%+In StockPharmaceutical Standards
CAS No.18593-45-8
Molecular FormulaC9H10N2OS
Molecular Weight194.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5,6-trimethyl-3H,4H-thieno[2,3-d]pyrimidin-4-one CAS 18593-45-8 chemical structure

Description

The occurrence of 2,5,6-trimethyl-3H,4H-thieno[2,3-d]pyrimidin-4-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2,5,6-trimethyl-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 18593-45-8) is a high-purity analytical reference standard with the molecular formula C9H10N2OS and a molecular weight of 194.25 g/mol.

The molecular framework of 2,5,6-trimethyl-3H,4H-thieno[2,3-d]pyrimidin-4-one (C9H10N2OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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.

CATO manufactures 2,5,6-trimethyl-3H,4H-thieno[2,3-d]pyrimidin-4-one 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.

Physical & Chemical Properties

Molecular FormulaC9H10N2OS
Molecular Weight194.25 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms2
Sulfur Atoms1

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