Difenzoquat methylsulfate Back Catalog number: 70649 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682234 2,4-Dihydroxybenzophenone, 1000mg Price on request 9564.16-50UG 6:2 DiPAPS, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no. 57677-95-6 Price on request PN-17S 1,2,7-Trichloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request