USEPA 521MRL QC Standard - Nitrosoamine Mix

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

4,4’-DDE

Ethylenethiourea, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 96-45-7