3,3',4,4'-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane Back Catalog number: BB-77 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended MPN-73 1,2,3,4,5,6,7-Heptachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane Price on request XA15890000AL Parathion-methyl, 100µg/mL in Acetonitrile, 1ml Price on request 83572 2,4-D Price on request