Heptachlor, 100 µg/ml, Methanol, 1ml Back Catalog number: 679447 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1962.12-10MG 2,2',4,4'-Tetrabromodiphenyl ether,neat,neat,10mg, Price on request 673493 Bupirimate, 100 µg/ml, Ethyl acetate, 5ml Price on request 79255 2,4-D Price on request