4-(5-((3,4-Dichlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)-2-phenylthiazole CAS 338759-70-9

Purity 97%+In StockPharmaceutical Standards
CAS No.338759-70-9
Molecular FormulaC20H16Cl2N4S2
Molecular Weight447.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(5-((3,4-Dichlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)-2-phenylthiazole CAS 338759-70-9 chemical structure

Description

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.

4-(5-((3,4-Dichlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)-2-phenylthiazole (CAS 338759-70-9), molecular formula C20H16Cl2N4S2 and molecular weight 447.40 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-(5-((3,4-Dichlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)-2-phenylthiazole (C20H16Cl2N4S2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 447.40 g/mol, it falls into the moderately-high-molecular-weight range. 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 FormulaC20H16Cl2N4S2
Molecular Weight447.40 g/mol
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms4
Sulfur Atoms2

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