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 10077.4-100MG N-Nitropiperazine-2,2,3,3,5,5,6,6-d8, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. Price on request 2170.20-5MG 1-/3-Nitrobenzo[e]pyrene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 91259-16-4 / 81340-58-1 Price on request 11718.12-100-IO 2,2',3,4',6'-Pentachlorobiphenyl (= 2,2',3',4,6-),100 µg/mL,isooctane,1mL, Price on request