5-(4-Tert-butylphenyl)-4-(3-chloro-4-methoxyphenyl)-4H-1,2,4-triazole-3-thiol CAS 721903-46-4

Purity 97%+In StockPharmaceutical Standards
CAS No.721903-46-4
Molecular FormulaC19H20ClN3OS
Molecular Weight373.90 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(4-Tert-butylphenyl)-4-(3-chloro-4-methoxyphenyl)-4H-1,2,4-triazole-3-thiol CAS 721903-46-4 chemical structure

Description

5-(4-Tert-butylphenyl)-4-(3-chloro-4-methoxyphenyl)-4H-1,2,4-triazole-3-thiol (CAS 721903-46-4) is a high-purity analytical reference standard with the molecular formula C19H20ClN3OS and a molecular weight of 373.90 g/mol.

The molecular framework of 5-(4-Tert-butylphenyl)-4-(3-chloro-4-methoxyphenyl)-4H-1,2,4-triazole-3-thiol (C19H20ClN3OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 5-(4-Tert-butylphenyl)-4-(3-chloro-4-methoxyphenyl)-4H-1,2,4-triazole-3-thiol 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 FormulaC19H20ClN3OS
Molecular Weight373.90 g/mol
Purity97%+
StorageStore at 2-8°C, 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms1

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