CWA Organophosphorous Pesticides Back Catalog number: 38135 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8458.6-100-CY Oxydemeton-methyl Price on request 79614 1-Methylpyrene Price on request 57011 Sodium (Na), 1000µg/ml in 2%-HNO3/Water, 100ml Price on request