EPA Method 547 Analyte Back Catalog number: 30046 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2691.34-10UG 17ß(H),21 alpha(H)-(22R)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 79951-54-5 Price on request 684658 Clethodim-sulfone, 100 µg/ml, Acetonitrile, 1ml Price on request ULM-4836-1.2 g-Hexabromocyclododecane, 50µg/mL in Toluene,1,2ml Price on request