3,3´-Dimethoxybenzidine, certified, 0.1g

EPA 8040 Surrogate Standard S-4241 2mg/mL each in isopropanol, 1 mL, 5 x 1mL, 5mL 2-Fluorophenol 2,4,6-Tribromophenol

2,6-Dichlorotoluene, 100mg

Propionic acid