0 Cefozopran hydrochloride CAS 113981-44-5 In APIs, Pharmaceutical Chemicals, Products 113981-44-5,Cefozopran hydrochloride,(6R,7R)-7-[[(2E)-2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetyl]amino]-3-(imidazo[2,3-f]pyridazin-4-ium-1-ylmethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid chloride