EPA Method 8021B Internal Standard Back Catalog number: 19394 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended P-962S-CN Mesotrione, 100µg/ml in Acetonitrile, 1ml Price on request 72708 sec-Butyl acetate Price on request 66169 3,3',4,4',5,5'-Hexachlorobiphenyl (169) Price on request