EPA Method 551.1 Internal Standard Back Catalog number: 30103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8677.12-100-AN Quizalofop-ethyl Price on request 678122 D8-9,10-Anthraquinone, 100 µg/ml, Acetonitrile, Price on request 9126.4-K-IO Mono-n-butyltin-d9 trichloride, 1000µg/mL in Isooctane, 1ml Price on request