Semi-Volatile Internal Standard

D3-MCPA, 100 µg/ml, Acetone, 1ml

3-n-Propylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1518-75-0

Parathion-methyl, 100 µg/ml, Ethyl acetate, 5ml