Show more...Show more...
Record Information
Version1.0
Creation Date2016-09-30 22:37:48 UTC
Update Date2020-06-04 20:46:48 UTC
MCDB ID BMDB0000870
Secondary Accession Numbers
  • BMDB00870
Metabolite Identification
Common NameHistamine
DescriptionHistamine, also known as eramin or ceplene, belongs to the class of organic compounds known as 2-arylethylamines. These are primary amines that have the general formula RCCNH2, where R is an organic group. Histamine exists as a solid, possibly soluble (in water), and a very strong basic compound (based on its pKa) molecule. Histamine exists in all living species, ranging from bacteria to humans. Histamine participates in a number of enzymatic reactions, within cattle. In particular, Histamine can be converted into histamine; which is mediated by the enzyme histamine H2 receptor. In addition, Histamine can be converted into histamine; which is mediated by the enzyme histamine H2 receptor. In cattle, histamine is involved in the metabolic pathway called the intracellular signalling through histamine H2 receptor and histamine pathway. Histamine is a potentially toxic compound.
Structure
Thumb
Synonyms
Chemical FormulaC5H9N3
Average Molecular Weight111.1451
Monoisotopic Molecular Weight111.079647303
IUPAC Name2-(1H-imidazol-4-yl)ethan-1-amine
Traditional Namehistamine
CAS Registry Number51-45-6
SMILES
NCCC1=CNC=N1
InChI Identifier
InChI=1S/C5H9N3/c6-2-1-5-3-7-4-8-5/h3-4H,1-2,6H2,(H,7,8)
InChI KeyNTYJJOPFIAHURM-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as 2-arylethylamines. These are primary amines that have the general formula RCCNH2, where R is an organic group.
KingdomOrganic compounds
Super ClassOrganic nitrogen compounds
ClassOrganonitrogen compounds
Sub ClassAmines
Direct Parent2-arylethylamines
Alternative Parents
Substituents
  • 2-arylethylamine
  • Aralkylamine
  • Heteroaromatic compound
  • Imidazole
  • Azole
  • Azacycle
  • Organoheterocyclic compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Primary aliphatic amine
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point86 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP-0.7SANGSTER (1993)
Predicted Properties
PropertyValueSource
logP-0.69ALOGPS
logP-0.7ChemAxon
logS0.18ALOGPS
pKa (Strongest Acidic)14.46ChemAxon
pKa (Strongest Basic)9.58ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area54.7 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity31.66 m³·mol⁻¹ChemAxon
Polarizability12.08 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Concentrations
StatusValueReferenceDetails
Detected and Quantified5.938 uM details
Detected and Quantified4.229 uM details
HMDB IDHMDB0000870
DrugBank IDDB05381
Phenol Explorer Compound IDNot Available
FoodDB IDFDB012596
KNApSAcK IDC00001414
Chemspider ID753
KEGG Compound IDC00388
BioCyc IDHISTAMINE
BiGG ID1810403
Wikipedia LinkHistamine
METLIN ID68
PubChem Compound774
PDB IDNot Available
ChEBI ID18295
References
Synthesis ReferencePyman, Frank L. 2-Thiol-4(5)-b-aminoethylglyoxaline (2-thiolhistamine). Journal of the Chemical Society (1930), 98-100.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Aurand LW, Moore PA, Jones EE: Effect of histamine on bovine milk fatty acids. J Anim Sci. 1980 May;50(5):783-92. [PubMed:7190139 ]