Histamine
Compounds
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Histamine is an organic nitrogenous compound involved in local immune responses communication, as well as regulating physiological functions in the gut and acting as a neurotransmitter for the brain, spinal cord, and uterus. Wikipedia
Formula: C5H9N3
3D model (JSmol): Interactive image
Acidity (pKa): Imidazole: 6.04; Terminal NH2: 9.75
ATC code: L03AX14 (WHO) V04CG03 (WHO) (phosphate)
Boiling point: 209.5 °C (409.1 °F; 482.6 K)
log P: −0.7
Molar mass: 111.148 g·mol−1