label: 1,5-dihydroxymethyl-3,8-dimethyl-4-vinyl-2-(2'-methylthio)ethenylporphine-6,7-diproprionic acid-iron complex
label_lc: 1,5-dihydroxymethyl-3,8-dimethyl-4-vinyl-2-(2'-methylthio)ethenylporphine-6,7-diproprionic acid-iron complex