Mass-Labelled HCH Solution/Mixture, 2µg/ml in Nonane, 1,2ml Back Catalog number: MHCH-MXA Availability: In the manufacturer's stock Price on request - + Recommended 70259 Pyrene Price on request 673530 4,4'-DDD, 100 µg/ml, Ethyl acetate, 5ml Price on request 19198 Purgeable Aromatic - Gasoline ID Price on request