1	MBV	Mesobiliverdin IV alpha	1.000
2	CP3	Coproporphyrinogen III	0.784
3	HT9	Coproporphyrin III	0.784
4	6HE	6-methy-6-depropionatehemin	0.783
5	7HE	7-methyl-7-depropionatehemin	0.783
6	PP9	Protoporphyrin ix	0.771
7	76R	[3,3',3'',3'''-(3,8,13,17-tetramethylporphyrin-2,7,12,18-tetrayl-kappa~4~N~21~,N~22~,N~23~,N~24~)tetra(propanoato)(2-)]manganese	0.769
8	FEC	1,3,5,8-tetramethyl-porphine-2,4,6,7-tetrapropionic acid ferrous complex	0.769
9	HEV	5,8-dimethyl-1,2,3,4-tetravinylporphine-6,7-dipropionic acid ferrous complex	0.760
10	BW9	Chromium protoporphyrin ix	0.755
11	COH	Protoporphyrin ix containing co	0.755
12	CV0	Mesoporphyrin ix containing RH	0.755
13	GIX	Protoporphyrin ix containing ga	0.755
14	H02	N-methyl protoporphyrin ix 2,4-disulfonic acid	0.755
15	HEB	Heme B/C	0.755
16	HEC	Heme C	0.755
17	HEG	Protoporphyrin ix containing Mg	0.755
18	HEM	Protoporphyrin ix containing Fe	0.755
19	HES	Zinc substituted heme C	0.755
20	HNI	Protoporphyrin ix containing ni(II)	0.755
21	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	0.755
22	MH0	Mesoheme	0.755
23	MMP	N-methylmesoporphyrin	0.755
24	MNH	Manganese protoporphyrin ix	0.755
25	MNR	Protoporphyrin ix containing Mn	0.755
26	RUR	[3,3'-(7,12-diethyl-3,8,13,17-tetramethylporphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~)dipropanoato(2-)]ruthenium	0.755
27	ZNH	Protoporphyrin ix containing Zn	0.755
28	FDD	Fe(III) 2,4-dimethyl deuteroporphyrin ix	0.750
29	HCO	2-acetyl-protoporphyrin ix	0.740
30	HIF	Fe(III)-(4-mesoporphyrinone)	0.740
31	MI9	Oxomolybdenum mesoporphyrin ix	0.740
32	MP1	N-methylmesoporphyrin containing copper	0.740
33	ZEM	20-oxo-protoporphyrin ix containing Zn(II)	0.740
34	522	Peroxidized heme	0.725
35	DDH	[7,12-deacetyl-3,8,13,17-tetramethyl-21h,23h-porphine-2,18-dipropanoato(2-)-n21,n22,n23,n24]-iron	0.725
36	HP5	Peroxidized heme form 2	0.725
37	DE9	3,3'-(3,7,12,17-tetramethylporphyrin-2,18-diyl)dipropanoic acid	0.723
38	CCH	[7-ethenyl-12-formyl-3,8,13,17-tertramethyl-21h,23h-porphine-2,18-dipropanoato(2)-n21,n22,n23,n24]iron	0.720
39	HFM	2-formyl-protoporphryn ix	0.720
40	6KI	Co-octaethylporphyrin	0.714
41	7KI	Co-5-octaethyloxaporphyrinium cation	0.714
42	89R	Fluorinated heme	0.712
43	N7H	Delta-meso nitroheme	0.712
44	NTE	[3,3'-{7-ethenyl-3,8,13,17-tetramethyl-12-[(E)-2-nitroethenyl]porphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~}dipro panoato(2-)]iron	0.712
45	VOV	Harderoheme (III)	0.712
46	DEU	Co(III)-(deuteroporphyrin ix)	0.708
47	FDE	Fe(III) deuteroporphyrin ix	0.708
48	MD9	Magnesium deuteroporphyrin ix	0.708
49	ZND	Zinc (II) deuteroporphyrin ix	0.708
50	CLN	Sulfur substituted protoporphyrin ix	0.706