38821-53-3 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-((amino-1,4-cyclohexadien-1-ylacetyl)amino)-3-methyl-8-oxo-, dihydrate, (6R-(6alpha,7beta(R*)))- 58456-86-3 Cephradine dihydrate Cephradine dihydrate [USAN] SQ 22022