Internal Standard Back Catalog number: 95592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11263.8-100-AN Atrazine-2-hydroxy-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL, Price on request L20016600IO PCB No. 166, 10 ng/µl, 10ml Price on request 677462 Clofibrate, 100mg Price on request