(6R,7R)-7-((R)-2-(4-Hydroxy-6-methylnicotinamido)-2-(p-hydroxyphe- nyl)acetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-- 5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid 70797-11-4 AIDS-007676 AIDS007676 Cefpiramide WY 44,635