Quality Control Standard, 1000µg/ml in AC, 1ml Back Catalog number: ISO/DIS9377-4-1 Availability: In the manufacturer's stock Price on request - + Recommended 3729.12-50-IO 4'-Fluoro-2,3,3',4,5,6-hexachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 674699 Diflubenzuron, 250mg Price on request 3484.6-100 Picloram, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1918-02-1 Price on request