2,4-DB Back Catalog number: 83573 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 63033 2',3,4-Trichlorobiphenyl (33) Price on request 71969 Isopropyl methylphosphonic acid Price on request 15900-4940-10AN10 Triazophos, 10µg/ml in Acetonitrile, 10ml Price on request