Tetrazole

1H-Tetrazole
Identifiers
CAS Number	288-94-8 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:33193 ;
ChemSpider	60842 ;
ECHA InfoCard	100.005.477
PubChem CID	67519;
UNII	D34J7PAT68 ;
CompTox Dashboard (EPA)	DTXSID5075280 ;
	InChI InChI=1S/CH2N4/c1-2-4-5-3-1/h1H,(H,2,3,4,5) Key: KJUGUADJHNHALS-UHFFFAOYSA-N ; InChI=1/CH2N4/c1-2-4-5-3-1/h1H,(H,2,3,4,5) Key: KJUGUADJHNHALS-UHFFFAOYAI; InChI=1S/CH2N4/c1-2-4-5-3-1/h1H,(H,2,3,4,5) Key: KJUGUADJHNHALS-UHFFFAOYSA-N;
	SMILES [nH]1nnnc1;
Properties
Chemical formula	CH2N4
Molar mass	70.05 g/mol
Density	1.477 g/mL
Melting point	157 to 158 °C (315 to 316 °F; 430 to 431 K)
Boiling point	220 ± 23 °C (428 ± 41 °F; 493 ± 23 K)
Acidity (pKa)	4.90
	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

A tetrazole is a synthetic organic heterocyclic compound, consisting of a 5-member ring of four nitrogen atoms and one carbon atom. The name tetrazole also refers to the parent compound - a whitish crystalline powder with the formula CH₂N₄, of which three isomers exist.