Difenzoquat methylsulfate Back Catalog number: 70649 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30128 EPA Method 525 - Semi-Volatile Mixture Price on request 681886 Fluorodifen, 100 µg/ml, Ethyl acetate, 5ml Price on request 94182 4-Chlorobenzotrifluoride Price on request