2,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678377 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 677817 Ethoprophos, 100 µg/ml, Acetonitrile, 1ml Price on request 58315 Phosphorus (P) Price on request 73520 Phorate sulfone, 1000µg/ml in Acetonitrile, 1ml Price on request