1,2,4-Triazole

1,2,4-Triazole
Names
	Preferred IUPAC name 1H-1,2,4-Triazole
	Other names 1,2,4-Triazole pyrrodiazole
Identifiers
CAS Number	288-88-0 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:46077 ;
ChEMBL	ChEMBL15571 ;
ChemSpider	8900 ;
ECHA InfoCard	100.005.476
PubChem CID	9257;
UNII	10MS0Y1RDI ;
CompTox Dashboard (EPA)	DTXSID6027131 ;
	InChI InChI=1S/C2H3N3/c1-3-2-5-4-1/h1-2H,(H,3,4,5) Key: NSPMIYGKQJPBQR-UHFFFAOYSA-N ; InChI=1/C2H3N3/c1-3-2-5-4-1/h1-2H,(H,3,4,5) Key: NSPMIYGKQJPBQR-UHFFFAOYAZ;
	SMILES N1C=NC=N1;
Properties
Chemical formula	C2H3N3
Molar mass	69.00725
Appearance	white solid
Density	1.439 g/cm3
Melting point	120 to 121 °C (248 to 250 °F; 393 to 394 K)
Boiling point	260 °C (500 °F; 533 K)
Solubility in water	very soluble
Acidity (pKa)	10,3
Basicity (pKb)	11,8
Hazards
Flash point	140 °C (284 °F; 413 K)
Related compounds
Related compounds	1,2,3-triazole imidazole
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,2,4-Triazole (as ligand in coordination compounds, Htrz abbreviation is sometimes used) is one of a pair of isomeric chemical compounds with molecular formula C₂H₃N₃, called triazoles, which have a five-membered ring of two carbon atoms and three nitrogen atoms. 1,2,4-Triazole and its derivatives find use in a wide variety of applications.