O,O-Dimethylphosphorodithioic acid ammonium salt,

Caffeine, 100µg/ml in MeOH, 1ml

Prothiofos, 100 µg/ml, Acetonitrile, 1ml

Hydroquinone, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 123-31-9