121992-23-2
[5-bromo-3-(2-carboxy-ethyl)-4-methyl-pyrrol-2-yl]-[5-bromo-3-(2-carboxy-ethyl)-4-methyl-pyrrol-2-ylidene]-methane, hydrobromide
→
3082-03-9
3-[8,12,18-tris(2-carboxyethyl)-3,7,13,17-tetramethyl-21,22-dihydroporphyrin-2-yl]propanoic acid