120635-27-0 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-((amino(2-amino-6-benzothiazolyl)acetyl)amino)-8-oxo-3-(1-propenyl)-, (6R-(3(Z),6alpha,7beta(R*)))- 7-(2-Amino-2-(2-aminobenzothiazol-6-yl-acetoamide))-3-(1-propen-1-yl)-3-cephen-4-carboxylic acid Bay v 3522 Bay v-3522