3737056 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3737056 > 2 > ChemIDplus > 027196016 > 21H,23H-Porphine-C,2,7,12-tetrapropanoic acid, 3,8,13,17 (or 3,8,13,18)-tetrakis(carboxymethyl)- 21H,23H-Porphinetetrapropionic acid, tetrakis(carboxymethyl)- 27196-01-6 Uroporphyrin I(III) > 27196-01-6 > 027196016 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=027196016 $$$$