1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,3-[[1-[4-[(3-hydroxy-1-azetidinyl)carbonyl]-2-oxazolyl]-3-azetidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-, (4-nitrophenyl)methyl ester,(4R,5S,6S)-
CAS No. 429666-35-3
TCCA 87-90-4