Selenium (Se) Back Catalog number: 57834 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3108.12-50-IO 2,2',4,4',5,5'-Hexabromobiphenyl,50 µg/mL,isooctane,1mL, Price on request 70090 Chlorpyrifos Price on request XA14745000AL Mandipropamid. 100µg/mL in Acetonitrile, 1ml Price on request