EPA Method 8141 Standard

Caffeine, 100 µg/ml, Methanol, 1ml

2,5-Dimethylheptane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 2216-30-0

Diclobutrazol, 10 µg/ml, Ethyl acetate, 10ml