gamma-HCH, 250mg Back Catalog number: 673954 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 50594 Copper - 20 PPM Price on request 11707.12-100-IO 3,3',5,5'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 94042 Hydrocarbon Mix #1 Price on request