Carvedilol impurity C - (2RS)-1-[benzyl[2-(2-methoxyphenoxy)ethyl]amino]-3- (9H-carbazol-4-yloxy)propan-2-ol

Casein BRP

Cefaclor

Cefadroxil

Cefalexin monohydrate

Cefalotin for impurity B identification

Cefalotin sodium

Cefamandole nafate

Cefapirin sodium

Cefatrizine impurity A - 7-amino-(6R,7R)-3-[(2H-1,2,3-triazol-4-yl)sulfanyl]-methyl-8-oxo-5-thia-1-azabicyclo[4.2.O]oct-2-ene-2-carboxylic acid(7-ACA triazole)