3749498 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3749498 > 2 > ChemIDplus > 064772298 > 6-N,N-1',6'-Hexylene formamidinopenicillanic acid 64772-29-8 Amidine penicillin HX Preparation HX > 64772-29-8 > 064772298 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=064772298 $$$$