2-Thioxo-2,3-dihydro-[1,2,4]triazolo[5,1-b]quinazolin-9(1H)-one CAS 134878-94-7

Description

As a certified reference material (CRM), 2-Thioxo-2,3-dihydro-[1,2,4]triazolo[5,1-b]quinazolin-9(1H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

2-Thioxo-2,3-dihydro-[1,2,4]triazolo[5,1-b]quinazolin-9(1H)-one (CAS 134878-94-7), molecular formula C9H6N4OS and molecular weight 218.24 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 2-Thioxo-2,3-dihydro-[1,2,4]triazolo[5,1-b]quinazolin-9(1H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 218.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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

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