1-Ethyl-3-(4-(3-mercapto-1H-1,2,4-triazol-5-yl)phenyl)urea CAS 4922-56-9

Purity 97%+In StockPharmaceutical Standards
CAS No.4922-56-9
Molecular FormulaC11H13N5OS
Molecular Weight263.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Ethyl-3-(4-(3-mercapto-1H-1,2,4-triazol-5-yl)phenyl)urea CAS 4922-56-9 chemical structure

Description

1-Ethyl-3-(4-(3-mercapto-1H-1,2,4-triazol-5-yl)phenyl)urea (CAS 4922-56-9) is a high-purity analytical reference standard with the molecular formula C11H13N5OS and a molecular weight of 263.32 g/mol.

Structurally, 1-Ethyl-3-(4-(3-mercapto-1H-1,2,4-triazol-5-yl)phenyl)urea (C11H13N5OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 263.32 g/mol, it falls into the medium-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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 1-Ethyl-3-(4-(3-mercapto-1H-1,2,4-triazol-5-yl)phenyl)urea 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 FormulaC11H13N5OS
Molecular Weight263.32 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms5
Sulfur Atoms1

Related Ethyl Standards

Recommended Standards

Why CATO?