Synonyms: Magnesate(3-),[13-acetyl-3-carboxy-5-(carboxymethyl)-18-ethyl-7,8,17,18-tetrahydro-2,8,12,17-tetramethyl-21H,23H-porphine-7-propanoato(5-)-N21,N22,N23,N24]-,trihydrogen, [SP-4-2-[7S-(7a,8b,17b,18a)]]-; 21H,23H-Porphine-7-propanoic acid,13-acetyl-3-carboxy-5-(carboxymethyl)-18-ethyl-7,8,17,18-tetrahydro-2,8,12,17-tetramethyl-,magnesium complex, [7S-(7a,8b,17b,18a)]-; Bacteriochlorophyllin a