Pyroxsulam, 100 µg/ml, Acetonitrile, 1ml

EPA Method 552 Surrogate Standard Methyl Ester

17 alpha(H),21ß(H)-(22RS)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 67069-13-0

Cloxacillin-13C4 Sodium Salt, 1mg