Nitrosamines - Mix 9, 100μg/ml in MeOH, 5ml

rac-(1R,2R)-1,2-dibromo-(4R)-4-((1R)-1,2-dibromoethyl)cyclohexane, 1.2ml x 50ug/ml , toluene

2,4-D 2-ethylhexyl ester, certified, 100mg

Thiobencarb, 10.0 µg/ml, Ethyl acetate, 10ml