Fenthion-oxon, 100µg/ml in Cyclohexane, 5ml

4-Methoxy-4'-chlorobiphenyl, 100µg/ml in IO, 1ml

2-Methoxy-5-methylaniline,100 µg/mL,acetonitrile,1mL,

Potassium butylxanthate (as butylxanthate acid)