EPA Method 508.1 & 525.2 Pesticide Standard Back Catalog number: 91970 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79448 Acetochlor Price on request 96504 cis-Tramadol HCl Price on request 71927 Disulfoton sulfone, 1000µg/ml in MeOH, 1ml Price on request