| Synonym | Etioporphyrin, 21H,23H-Porphine, 2,7,12,17-tetraethyl-3,8,13,18-tetramethyl-, 3,8,13,18-Tetraethyl-2,7,12,17-tetramethyl-21H,23H-porphine, Mesoetioporphyrin, 21H,23H-Porphine, 2,7,12,17-tetraethyl-3,8,13,18-tetramethyl-, 3,8,13,18-Tetraethyl-2,7,12,17-tetramethyl-21H,23H-porphine, Etioporphyrin, ETIOPORPHYRIN I, 2,7,12,17-TETRAETHYL-3,8,13,18-TETRAMETHYL-21H,23H-PORPHINE, 2,7,12,17-Tetraethyl-3,8,13,18-tetramethyl-21H,23H-porphyrin, Mesoetioporphyrin, 2,7,12,17-tetraethyl-3,8,13,18-tetramethyl-21,22-dihydroporphine |