Histamine

Histamine

Names
IUPAC name 2-(1H-imidazol-4-yl)ethanamine
Identifiers
CAS Nummer	51-45-6 Y
3D model (JSmol)	Interactive eemage
ChEBI	CHEBI:18295 Y
ChEMBL	ChEMBL90 Y
ChemSpider	753 Y
IUPHAR/BPS	1204
KEGG	D08040 Y
MeSH	Histamine
PubChem CID	774
UNII	820484N8I3 Y
InChI InChI=1S/C5H9N3/c6-2-1-5-3-7-4-8-5/h3-4H,1-2,6H2,(H,7,8) Y Key: NTYJJOPFIAHURM-UHFFFAOYSA-N Y InChI=1/C5H9N3/c6-2-1-5-3-7-4-8-5/h3-4H,1-2,6H2,(H,7,8) Key: NTYJJOPFIAHURM-UHFFFAOYAP
SMILES n1cc(nc1)CCN
Properties
Chemical formula	C5H9N3
Molar mass	111.15 g·mol−1
Meltin pynt	83.5 °C (182.3 °F; 356.6 K)
Bylin pynt	209.5 °C (409.1 °F; 482.6 K)
Solubility in watter	Easily soluble in cauld watter, het watter
Solubility in ither solvents	Easily soluble in methanol. Very slichtly soluble in diethyl ether. Easily soluble in ethanol.
Acidity (pKa)	imidazole: 6.04 NH2: 9.75
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
Y verify (whit is YN ?)
Infobox references

Histamine is an organic nitrogenous compoond involved in local immune responses as well as regulatin physiological function in the gut an actin as a neurotransmitter.