1	1CP	Coproporphyrinogen I	1.000
2	PC3	Coproporphyrin I containing co(III)	0.980
3	CP3	Coproporphyrinogen III	0.846
4	HT9	Coproporphyrin III	0.846
5	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	0.830
6	FEC	1,3,5,8-tetramethyl-porphine-2,4,6,7-tetrapropionic acid ferrous complex	0.830
7	UPI	3-[(1z,9z)-3,8,13,18-tetrakis(2-hydroxy-2-oxoethyl)-7,12,17-tris(3-hydroxy-3-oxopropyl)-21,23-dihydroporphyrin-2-yl]propanoic acid	0.800
8	7HE	7-methyl-7-depropionatehemin	0.776
9	7J8	3-[4-(2-hydroxy-2-oxoethyl)-5-[[4-(2-hydroxy-2-oxoethyl)-5-[[4-(2-hydroxy-2-oxoethyl)-5-[[4-(2-hydroxy-2-oxoethyl)-3-(3-hydroxy-3-oxopropyl)-5-methyl-1~{H}-pyrrol-2-yl]methyl]-3-(3-hydroxy-3-oxopropyl)-1~{H}-pyrrol-2-yl]methyl]-3-(3-hydroxy-3-oxopropyl)-1~{H}-pyrrol-2-yl]methyl]-1~{H}-pyrrol-3-yl]propanoic acid	0.770
10	PP9	Protoporphyrin ix	0.731
11	OBV	12,18-didecarboxy-siroheme	0.721
12	VER	Iron-octaethylporphyrin	0.720
13	BW9	Chromium protoporphyrin ix	0.717
14	COH	Protoporphyrin ix containing co	0.717
15	CV0	Mesoporphyrin ix containing RH	0.717
16	GIX	Protoporphyrin ix containing ga	0.717
17	H02	N-methyl protoporphyrin ix 2,4-disulfonic acid	0.717
18	HEB	Heme B/C	0.717
19	HEC	Heme C	0.717
20	HEG	Protoporphyrin ix containing Mg	0.717
21	HEM	Protoporphyrin ix containing Fe	0.717
22	HES	Zinc substituted heme C	0.717
23	HNI	Protoporphyrin ix containing ni(II)	0.717
24	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
25	MH0	Mesoheme	0.717
26	MMP	N-methylmesoporphyrin	0.717
27	MNH	Manganese protoporphyrin ix	0.717
28	MNR	Protoporphyrin ix containing Mn	0.717
29	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	0.717
30	ZNH	Protoporphyrin ix containing Zn	0.717
31	UP2	Uroporphyrinogen III	0.714
32	UP3	3,3',3'',3'''-[3,8,13,17-tetrakis(carboxymethyl)porphyrin-2,7,12,18-tetrayl]tetrapropanoic acid	0.714
33	6HE	6-methy-6-depropionatehemin	0.706
34	HCO	2-acetyl-protoporphyrin ix	0.704
35	MP1	N-methylmesoporphyrin containing copper	0.704
36	ZEM	20-oxo-protoporphyrin ix containing Zn(II)	0.704
37	UFE	Fe(III) uroporphyrin	0.703