Difeconazole,, 100µg/ml in Acetonitrile, 5ml

2,3,4,6-Tetrabromophenol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 14400-94-3

Citalopram Hydrobromide, >98%, 5g

EPA Method 552.1 - Surrogate Standard