1,2,4-Triazol-4-amine is an intermediate used to prepare potent, selective, and orally active cyclooxygenase-?2 inhibitors. It is also used to synthesize hydroxyphenacyl azoles and related azolium derivatives as antifungal agents.
It crystallises from EtOH/ Et2O or H2O. The hydrochloride has m 151-152o (from EtOH, 1g/10mL). [Allen & Bell Org Synth Coll Vol III 96 1955, Barszez et al. J Chem Soc, Dalton Trans 2025 1986, Beilstein 26 H 16, 26 II 7, 26 III/IV 40, Temple & Montgomery 1,2,4-Triazoles —The Chemistry of Heterocyclic Compounds Vol 37 (Weissberger & Taylor eds.). Wiley & Sons NY 1981, ISBN 0-471-0656-6.]