p. 550,553,554
(1941)p. 1564 - 1566
(1993)p. 185 - 195
(1989)p. 3077,3080,3082
(1975)p. 11577 - 11600
(2007/10/03)p. 625 - 629
(2007/10/02)p. 2796 - 2802
(2007/10/02)mesoporphyrin IX
4-ethyl-3,5-dimethylpyrrole-2-carbaldehyde
2,4-dimethyl-3-ethyl-pyrrole
butyl 5'-ethoxycarbonyl-3',4-diethyl-3,4'-dimethyl-2,2'-dipyrrylmethane-5-carboxylate
C15H22N2