1 DDH [7,12-deacetyl-3,8,13,17-tetramethyl-21h,23h-porphine-2,18-dipropanoato(2-)-n21,n22,n23,n24]-iron 1.000 2 HCO 2-acetyl-protoporphyrin ix 0.978 3 CCH [7-ethenyl-12-formyl-3,8,13,17-tertramethyl-21h,23h-porphine-2,18-dipropanoato(2)-n21,n22,n23,n24]iron 0.956 4 HEB Heme B/C 0.956 5 HEC Heme C 0.956 6 HEM Protoporphyrin ix containing Fe 0.956 7 HFM 2-formyl-protoporphryn ix 0.956 8 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 0.956 9 MH0 Mesoheme 0.956 10 PP9 Protoporphyrin ix 0.933 11 522 Peroxidized heme 0.915 12 HEV 5,8-dimethyl-1,2,3,4-tetravinylporphine-6,7-dipropionic acid ferrous complex 0.915 13 HP5 Peroxidized heme form 2 0.915 14 BW9 Chromium protoporphyrin ix 0.913 15 COH Protoporphyrin ix containing co 0.913 16 CV0 Mesoporphyrin ix containing RH 0.913 17 GIX Protoporphyrin ix containing ga 0.913 18 HEG Protoporphyrin ix containing Mg 0.913 19 HES Zinc substituted heme C 0.913 20 HNI Protoporphyrin ix containing ni(II) 0.913 21 MNH Manganese protoporphyrin ix 0.913 22 MNR Protoporphyrin ix containing Mn 0.913 23 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 0.913 24 ZNH Protoporphyrin ix containing Zn 0.913 25 FDD Fe(III) 2,4-dimethyl deuteroporphyrin ix 0.911 26 N7H Delta-meso nitroheme 0.896 27 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 0.896 28 ZEM 20-oxo-protoporphyrin ix containing Zn(II) 0.894 29 18B 3-[2-[(z)-[3-(2-carboxyethyl)-5-[(z)-(3-ethenyl-4-methyl-5-oxo-pyrrol-2-ylidene)methyl]-4-methyl-pyrrol-2-ylidene]methy L]-5-[(z)-(4-ethyl-3-methyl-5-oxo-pyrrol-2-ylidene)methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.872 30 3Q8 3-[2-[[5-[[(3e,4s)-3-ethylidene-4-methyl-5-oxidanylidene-pyrrol-2-yl]methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1h-pyrrol-2-yl]methyl]-5-[(4-ethyl-3-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.872 31 BLA Biliverdine ix alpha 0.872 32 BLR 3-[5-[(z)-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-2-[[5-[(z)-(3-ethenyl-4-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1h-pyrrol-2-yl]methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.872 33 BLV Biliverdin ix gamma chromophore 0.872 34 BVX 3-[2-[(~{z})-[5-[(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-pyrrol-2-ylidene]methyl]-5-[(~{z})-(3-ethyl-4-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.872 35 CYC Phycocyanobilin 0.872 36 IE5 Biliverdine ix alpha 0.872 37 JRA 3-[2-[(~{z})-[5-[(~{z})-[(3~{S},4~{R})-3-ethenyl-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-pyrrol-2-ylidene]methyl]-5-[(~{z})-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.872 38 PEB Phycoerythrobilin 0.872 39 PUB Phycourobilin 0.872 40 PXQ 3-[5-[[(3~{R},4~{R})-3-ethyl-4-methyl-5-oxidanylidene-3,4-dihydropyrrol-2-yl]methyl]-2-[[5-[(~{z})-(4-ethyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1~{H}-pyrrol-2-yl]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.872 41 UPB 3-[5-[(~{z})-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-2-[(~{z})-[5-[(~{z})-[(4~{R})-3-ethyl-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-pyrrol-2-ylidene]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.872 42 UYC 3-[2-[(~{z})-[5-[(~{z})-[(4~{R})-3-ethylidene-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-pyrrol-2-ylidene]methyl]-5-[(~{z})-(4-ethyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.872 43 VHG 3-[2-[[5-[(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1~{H}-pyrrol-2-yl]methyl]-5-[[(3~{S})-4-ethyl-3-methyl-2-oxidanylidene-1,3-dihydropyrrol-5-yl]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.872 44 VRB Phycoviolobilin, blue light-absorbing form 0.872 45 7HE 7-methyl-7-depropionatehemin 0.867 46 FDE Fe(III) deuteroporphyrin ix 0.867 47 CLN Sulfur substituted protoporphyrin ix 0.854 48 FMI Fe-(4-mesoporphyrinone)-R-isomer 0.854 49 HIF Fe(III)-(4-mesoporphyrinone) 0.854 50 DE9 3,3'-(3,7,12,17-tetramethylporphyrin-2,18-diyl)dipropanoic acid 0.844 51 1FH 12-phenylheme 0.843 52 2FH 2-phenylheme 0.843 53 HDM Dimethyl propionate ester heme 0.837 54 BL3 3-[2-[(z)-[3-(2-carboxyethyl)-5-[(z)-(3-ethenyl-4-methyl-5-oxo-pyrrol-2-ylidene)methyl]-4-methyl-pyrrol-2-ylidene]methy L]-5-[(z)-(3-ethenyl-4-methyl-5-oxo-pyrrol-2-ylidene)methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.833 55 H02 N-methyl protoporphyrin ix 2,4-disulfonic acid 0.833 56 MMP N-methylmesoporphyrin 0.833 57 VEA 5-oxa-protoporphyrin ix containing Fe 0.833 58 WUF Benzyl[3,3'-(7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~)di(propanoato)(2-)]iron 0.827 59 DEU Co(III)-(deuteroporphyrin ix) 0.826 60 MD9 Magnesium deuteroporphyrin ix 0.826 61 ZND Zinc (II) deuteroporphyrin ix 0.826 62 CP3 Coproporphyrinogen III 0.824 63 HT9 Coproporphyrin III 0.824 64 89R Fluorinated heme 0.820 65 VOV Harderoheme (III) 0.820 66 MI9 Oxomolybdenum mesoporphyrin ix 0.816 67 MP1 N-methylmesoporphyrin containing copper 0.816 68 J1R (1r,19r) cobalt tetradehydrocorrin 0.812 69 J1S (1s,19s) cobalt tetradehydrocorrin 0.812 70 TBV 3-[2-[[3-(2-carboxyethyl)-5-[[3-ethenyl-4-methyl-5-[(2-methylpropan-2-yl)oxy]-1h-pyrrol-2-yl]methyl]-4-methyl-1h-pyrrol -2-yl]methyl]-5-[(z)-(4-ethenyl-3-methyl-5-oxo-pyrrol-2-ylidene)methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.804 71 3Q9 3-[5-[(4-ethyl-3-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-2-[[5-[(3-ethyl-4-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1h-pyrrol-2-yl]methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.796 72 9UY 3-[5-[[(3~{R},4~{R})-3-ethenyl-4-methyl-5-oxidanylidene-3,4-dihydropyrrol-2-yl]methyl]-2-[[5-[(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1~{H}-pyrrol-2-yl]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.796 73 9V1 3-[2-[[5-[(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1~{H}-pyrrol-2-yl] methyl]-5-[[(3~{R},4~{R})-3-ethyl-4-methyl-5-oxidanylidene-3,4-dihydropyrrol-2-yl]methyl]-4-methyl-1~{H}-pyrrol-3-yl]pro panoic acid 0.796 74 AX9 Dicys-(15,16)-dihydrobiliverdin 0.796 75 BL8 3-[2-[(z)-[5-[(z)-[(3r,4r)-3-ethenyl-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-pyrrol-2-ylidene]methyl]-5-[(z)-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.796 76 DBV 15,16-dihydrobiliverdin 0.796 77 EL5 3-[(2z)-2-({3-(2-carboxyethyl)-5-[(E)-(4-ethenyl-3-methyl-5-oxo-1,5-dihydro-2h-pyrrol-2-ylidene)methyl]-4-methyl-1h-pyrrol-2-yl}methylidene)-5-{(z)-[(3e,4s)-3-ethylidene-4-methyl-5-oxopyrrolidin-2-ylidene]methyl}-4-methyl-2h-pyrrol-3-yl]propanoic acid 0.796 78 KP9 Bilin 618 (single linked) 0.796 79 KPX Bilin 584 (single linked) 0.796 80 KQ6 Bilin 584 (doubly linked) 0.796 81 LBV 3-[2-[(z)-[3-(2-carboxyethyl)-5-[(z)-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-pyrrol-1-ium -2-ylidene]methyl]-5-[(z)-[(3e)-3-ethylidene-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-4-methyl-1h-pyrrol-3- yl]propanoic acid 0.796 82 LBW 3-[2-[(z)-[5-[(z)-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-pyrrol-1-ium-2-ylidene]methyl]-5-[(z)-[(3e,4r)-3-ethylidene-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-4-methyl-1h-pyrrol-3-yl]propanoic acid 0.796 83 M1V Mesobiliverdin ix(alpha) 0.796 84 O6E 3-[5-[[(3~{R},4~{R})-3-ethyl-4-methyl-5-oxidanylidene-3,4-dihydropyrrol-2-yl]methyl]-2-[[5-[(4-ethyl-3-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1~{H}-pyrrol-2-yl]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.796 85 PVG Phycoviolobilin, green light-absorbing form 0.796 86 PVN Phycoviolobilin 0.796 87 V8U 3-[5-[(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-2-[[5-[(3-ethyl-4-methyl-5-oxidanylidene-pyrrol-2-yl)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1~{H}-pyrrol-2-yl]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid 0.796 88 X2I (15,16)-dihydrobiliverdin (singly linked) 0.796 89 6HE 6-methy-6-depropionatehemin 0.787 90 VER Iron-octaethylporphyrin 0.783 91 6CO [3,3'-(7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~)di(propanoato)(2-)](phenyl)iron 0.774 92 DHE Heme D 0.774 93 4HE (4-chlorophenyl)[3,3'-(7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~)di(propanoato)(2-)]iron 0.759 94 6CQ [3,3'-(7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~)di(propanoato)(2-)](3-methylphenyl)iron 0.759 95 HDE Cis-heme D hydroxychlorin gamma-spirolactone 17r, 18s 0.745 96 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 0.741 97 HEO Heme O 0.733 98 OBV 12,18-didecarboxy-siroheme 0.729 99 MBV Mesobiliverdin IV alpha 0.725 100 HEA Heme-a 0.721 101 6KI Co-octaethylporphyrin 0.720 102 HE5 Zinc(II)-deuteroporphyrin dimethylester 0.720 103 H01 Protoporphyrin ix 2,4-disulfonic acid 0.717 104 FEC 1,3,5,8-tetramethyl-porphine-2,4,6,7-tetrapropionic acid ferrous complex 0.709 105 HE6 6,7-dicarboxyl-1,2,3,4,5,8-hexamethylhemin 0.708