2,4'-DDD, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673528 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 10900.17-K-ME Promethazine hydrochloride,1000 µg base/mL,MeOH,1mL Price on request 674596 Fensulfothion-oxon, 100 µg/ml, Acetonitrile, 5ml Price on request S-4035-5K-10IO Diphenylsulfide in isooctane, Blank Units: 5x1mL ampoules Price on request