Formaldehyde-DNPH Level 7 (20ug/mL)

2-Phenylphenol, 100 µg/ml, Ethyl acetate, 5ml

2,2',3,3',4,4',5,5',6-Nonachloro[13C12]biphenyl, 50.0µg/mL in Nonane/10% toluene, 1,2ml

beta-Cyfluthrin