SMILES: CC(C)([C@H](C(=O)O)N=CC1=C(OC(=N1)CC2=CC=CC=C2)O)S
Description: The molecule is a penicillenic acid having a benzyl substituent at the 2-position on the oxazolone ring. It has a role as an allergen. It is a conjugate acid of a benzylpenicillenate.