Calibration Standard Mix 4 Back Catalog number: 52013A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8909.14 5-Methyl-2,2',4,4'-tetrachlorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request 12165.14-10MG Ormetoprim,neat,neat,10mg, Price on request 70163 Diphenamid Price on request