英文别名H-His-His-OH; 2-[[2-amino-3-(1H-imidazol-5-yl)propanoyl]amino]-3-(1H-imidazol-5-yl)propanoic acid; N'alpha-histidylhistidine; (S)-2-[(S)-2-Amino-3-(1H-imidazol-4-yl)propionylamino]-3-(1H-imidazol-4-yl]propionic acid; His-His-OH; L-His-L-His-OH; 2-[[2-amino-3-(1H-imidazol-5-yl)propanoyl]amino]-3-(1H-imidazol-5-yl)propionic acid; 2-[[2-azanyl-3-(1H-imidazol-5-yl)propanoyl]amino]-3-(1H-imidazol-5-yl)propanoic acid 
