CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 22016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682235 2,2',4,4'-Tetrahydroxybenzophenone, 500mg Price on request 90276 Aroclor 1260 Price on request 2274.6-2K-ME 4-Methyl-2-pentanone, 2000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 108-10-1 Price on request