Dioxabenzofos, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 683832 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 30105 EPA Method 552,552.1,552.2 Internal Std Price on request 685286 D12-Benzo[a]pyrene, 100 µg/ml, Acetonitrile, 1ml Price on request A634238-1MG Amoxicillin-d4 (Major), 1mg Price on request