Merck 137009 Potassium Chloride Suitable For The Biopharmaceutical Production Emprove® Bio Ph Eur,Bp,Usp Cas 7447-40-7Merck 137009 Potassium Chloride Suitable For The Biopharmaceutical Production Emprove® Bio Ph Eur,Bp,Usp Cas 7447-40-7, Merck137009.5000