EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 690500 Bifenox, 100mg Price on request 675967 D5-Acetochlor, 100 µg/ml, Acetonitrile, 1ml Price on request 9423.18-50MG Methyl heptadecanoate-d33, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 1219804-81-5 Price on request