1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, 6-[(1R)-1-hydroxyethyl]-3-[[2-[(iminomethyl)amino]ethyl]thio]-7-oxo-, (5R,6S)- 64221-86-9 (ANHYDROUS) 74431-23-5 (MONOHYDRATE) AIDS-007648 AIDS007648 IMP Imipemide Imipenem, N-Formimidoyl thienamycin MK 0787 N-Formimidoylthienamycin Tienamycin [5R-[5.alpha.,6.alpha.(R*)]]-6-(1-Hydroxyethyl)-3-[[2- [(iminomethyl)amino]ethyl]thio]-7-oxo-1-azabicyclo[3.2.0]hept-2- ene-2-carboxylic acid monohydrate