SMILES: CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)N=CC3=CC=C(C=C3)O)C(=O)O)C
Description: The molecule is penicillanic acid carrying a (p-hydroxybenzylidene)amino substituent at the 6beta position. It has been used as a hapten in the production of a generic monoclonal antibody for determining penicillin residues in milk. It has a role as a hapten.