a number of porphyrin derivatives have been found to inhibit yeast glyoxalase i ( ec 4.4.1.5 ) at 25 degrees c , including haemin , protoporphyrin ix , coproporphyrin iii , haematoporphyrin , deuteroporphyrin as well as meso- ( tetrasubstituted ) porphines .
C0032712
porphyrin
C0033733
protoporphyrin ix