Difenoxuron, 100 µg/ml, Acetonitrile, 1ml

2,3-Dichloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

2,3-Dichloro-1-propanediol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 616-23-9

Caffeine-d3 (1-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 26351-03-1