1-ethyl-1H-1,2,4-triazol-5-amine CAS 58661-94-2

Purity 97%+In StockPharmaceutical Standards
CAS No.58661-94-2
Molecular FormulaC4H8N4
Molecular Weight112.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-ethyl-1H-1,2,4-triazol-5-amine CAS 58661-94-2 chemical structure

Description

The molecular framework of 1-ethyl-1H-1,2,4-triazol-5-amine (C4H8N4) is characterized by a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

1-ethyl-1H-1,2,4-triazol-5-amine (CAS 58661-94-2), molecular formula C4H8N4 and molecular weight 112.13 g/mol, is a CATO reference standard with documented purity and traceability.

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.

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.

Physical & Chemical Properties

Molecular FormulaC4H8N4
Molecular Weight112.13 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1973
Nitrogen Atoms4

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