EPA Method 527 Surrogate Standard Back Catalog number: 95053 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680872 4-Chloroacetanilide, 500mg Price on request 3501.9-100-AN Sebuthylazine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 7286-69-3 Price on request 96505 Buprenorphine.HCI Price on request