Phytyl (132R,17S,18S)-3-(8-ethyl-132-methoxycarbonyl-2,7,12,18-tetramethyl-13′-oxo-3-vinyl-131-132-17,18-tetrahydrocyclopenta [at]-porphyrin-17-yl)propionate, (Pheophytin a), or as the magnesium complex (Chlorophyll a)
le phytyl (132R,17S18S))-[éthyl-8-méthoxy-132-carbonyl-tétraméthyl-2,7,12,18-oxo-13′-vinyl-3-tétrahydro-131,132,17,18-cyclopenta(at)-porphyrinyl-17]-3 propionate (phéophytine a) ou le complexe au magnésium correspondant (chlorophylle a)