4-((4-Chloro-3-nitrobenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione CAS 478256-23-4

Purity 97%+In StockPharmaceutical Standards
CAS No.478256-23-4
Molecular FormulaC16H12ClN5O2S
Molecular Weight373.82 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-((4-Chloro-3-nitrobenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione CAS 478256-23-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 373.82 g/mol gives 4-((4-Chloro-3-nitrobenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-((4-Chloro-3-nitrobenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478256-23-4) is a high-purity analytical reference standard with the molecular formula C16H12ClN5O2S and a molecular weight of 373.82 g/mol.

4-((4-Chloro-3-nitrobenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione (C16H12ClN5O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 4-((4-Chloro-3-nitrobenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione 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.

Physical & Chemical Properties

Molecular FormulaC16H12ClN5O2S
Molecular Weight373.82 g/mol
Purity97%+
StorageStore at 2-8°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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms5
Sulfur Atoms1

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