EINECS: 200-298-4
Molecular Formula: C₅H₉N₃•2HCl;C₅H₁₁Cl₂N₃
Synonyms: 2-imidazol-4-ylethylamine dihydrochloride; Histamine-alpha,alpha,??d4?HCl)2; HISTAMINE DICHLORHYDRATE; histamine dihcl; 2-(1H-Imidazol-4-yl)ethylamine dihydrochloride; 2-(4-Imidazolyl)ethylamine dihydrochloride
Appearance: white powder
Molecular Weight: 184.07
Density: 1.14 g/cm3
Boiling Point: 331 °C at 760 mmHg
Melting Point: 249-252℃
Flash Point: 180.3 °C
Storage Temperature: 2-8°C
Solubility: 0.1 g/mL, clear, colorless in water
Biological Activity: Endogenous agonist at histamine receptors (H 1-4 ). Released from mast cells and basophils and exhibits inflammatory, vasodilatory and bronchoconstrictory activity. Stimulates gastric acid secretion and acts as a neurotransmitter in vivo .
Stability: Stable. Incompatible with strong oxidizing agents.
Usage: Histamine is involved in local immune responses, regulating physiological function in the gut and as a neurotransmitter.