1263-63-4 2,18-Porphinedipropionic acid, 7,12-diethyl-3,8,13,17-tetramethyl-, dimethyl ester (VAN) (8CI) 21H,23H-Porphine-2,18-dipropanoic acid, 7,12-diethyl-3,8,13,17-tetramethyl-, dimethyl ester 63626-96-0 Dimethyl 7,12-diethyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropionate EINECS 215-030-1 Mesoporphyrin IX dimethyl ester (VAN) Mesoporphyrin dimethyl ester (VAN) Mesoporphyrin ix dimethyl ester NSC 16668