Synonyms: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid,6-[[(2R)-[[[6-[4-[[bis(2-hydroxyethyl)amino]sulfonyl]phenyl]-1,2-dihydro-2-oxo-3-pyridinyl]carbonyl]amino](4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-,monosodium salt, (2S,5R,6R)- (9CI);4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid,6-[[[[[6-[4-[[bis(2-hydroxyethyl)amino]sulfonyl]phenyl]-1,2-dihydro-2-oxo-3-pyridinyl]carbonyl]amino](4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-,monosodium salt, [2S-[2a,5a,6b(S*)]]-; CI 867; Piridicillin sodium