1H-Imidazole-4-ethanamine 2-(4-Imidazolyl)ethylamine 2-Imidazol-4-ylethylamine 4-(2-Aminoethyl)-1H-imidazole 5-Imidazoleethylamine 51-45-6 CCRIS 6535 EINECS 200-100-6 Eramin Ergamine Ergotidine Ethylamine, 2-imidazol-4-yl- Free histamine HISTAMINE HSDB 3338 Histamine [USAN] Imidazole, 4-(2-aminoethyl)- Imidazole-4-ethylamine Istamina [Italian] NSC 33792 Theramine beta-Aminoethylglyoxaline beta-Aminoethylimidazole beta-Imidazolyl-4-ethylamine