Difenzoquat methylsulfate Back Catalog number: 70649 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94203 Method 624 Volatile Standard Price on request 2009.12-100-IO 2,3,4,4',5-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-37-0 Price on request 674607 Cloprop, 100mg Price on request