4,4'-DDD, 100 µg/ml, Methanol, 1ml Back Catalog number: 679457 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 79011 4,4’-Dichlorobiphenyl Price on request 675991 Diclofop-methyl, 100 µg/ml, Cyclohexane, 5ml Price on request C16708240 Quinmerac metabolite BH 518-4, 25mg Price on request