2-amino-3-(1-methylimidazol-4-yl)propanoic acid 2-amino-3-(1-methyl-4-imidazolyl)propanoic acid 2-amino-3-(1-methylimidazol-4-yl)propionic acid 332-80-9 3-Methylhistidin 1-Methyl-L-histidine Histidine, 1-methyl-, L- L-Histidine, 1-methyl- NSC524367 1-Methylhistidine