CWA Organophosphorous Pesticides Back Catalog number: 38135 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79365 Diethyl sulfate Price on request S-4341-K-HXX5 Quality Control Standard of Mineral Oils 2 2x500µg/ml in n-Hexane i 1ml crimp-top Price on request 679379 Demeton-S-methyl-sulfone, 10 µg/ml, Cyclohexane, Price on request