Multi-Element Check Standard Back Catalog number: 59001 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-1349-S 1,3,4,9-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 680323 3-Hydroxy-Imidacloprid, 100 µg/ml, Acetonitrile, Price on request 677378 D6-Sudan II, 10mg Price on request