2-Methyl-5-nitroaniline, 100 µg/ml, Acetonitrile,

Imicyafos, 100 µg/ml, Acetonitrile, 1ml

Semicarbazide HCl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 563-41-7

EPA Method 552.2 - Surrogate Standard