CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 21016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2772.6-100-AN Atrazine-desethyl, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 6190-65-4 Price on request 71237 cis-Nonachlor Price on request 11227.22-50MG Losartan potassium,neat,neat,50mg, Price on request