1	HEA	Heme-a	1.000
2	HEO	Heme O	0.983
3	HAS	Heme-as	0.923
4	HCO	2-acetyl-protoporphyrin ix	0.733
5	DDH	[7,12-deacetyl-3,8,13,17-tetramethyl-21h,23h-porphine-2,18-dipropanoato(2-)-n21,n22,n23,n24]-iron	0.721
6	CCH	[7-ethenyl-12-formyl-3,8,13,17-tertramethyl-21h,23h-porphine-2,18-dipropanoato(2)-n21,n22,n23,n24]iron	0.717
7	HEB	Heme B/C	0.717
8	HEC	Heme C	0.717
9	HEM	Protoporphyrin ix containing Fe	0.717
10	HFM	2-formyl-protoporphryn ix	0.717
11	ISW	{3,3'-[(9s)-8,13-diethenyl-3,7,12,17-tetramethyl-9,10-dihydroporphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~]dipropanoato(2-)}iron	0.717
12	MH0	Mesoheme	0.717
13	PP9	Protoporphyrin ix	0.700