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 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:46077 Y
ChEMBL	ChEMBL15571 Y
ChemSpider	8900 Y
ECHA InfoCard	100.005.476
PubChem CID	9257
UNII	10MS0Y1RDI Y
CompTox Dashboard (EPA)	DTXSID6027131
InChI InChI=1S/C2H3N3/c1-3-2-5-4-1/h1-2H,(H,3,4,5) Y Key: NSPMIYGKQJPBQR-UHFFFAOYSA-N Y 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). Y verify (what is YN ?) 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.^[1]