1	HSM	Histamine	1.000
2	A1AJU	4-ethenyl-1h-imidazole	0.875
3	HSO	L-histidinol	0.800
4	HSV	L-histidinal	0.800
5	4MZ	4-methylimidazole	0.750
6	DHI	D-histidine	0.727
7	HHI	(2z)-3-(1h-imidazol-5-yl)-2-iminopropanoic acid	0.727
8	HIA	L-histidine amide	0.727
9	HIS	Histidine	0.727
10	45X	2-(pyridin-3-yl)ethanamine	0.700
11	BJN	2-pyridin-3-ylethylazanium	0.700
12	IZC	2h-imidazol-4-ylacetic acid	0.700