MA - EPH Fractionation Surrogate Spike Back Catalog number: 51039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71572 2,3,5,6-Tetrachlorophenol-PFB derivative Price on request 70213 Methylene chloride-d2 Price on request 9451.9-100 Dicamba methyl ester, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 6597-78-0 Price on request