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 675689 Proquinazid, 50mg Price on request 54214 Ammonia as (NH4+) Price on request 674489 Permethrin, 10.0 µg/ml, Acetonitrile, 10ml Price on request