2,4,6-Trimethylphenol, 100 µg/ml, Acetonitrile,

5-Chloro-2-(2,4-dichloro[13C6]phenoxy)[13C6]phenol, 1.2ml x 50ug/ml, nonane

Clofentezine

2-Hydroxyatrazine, 100µg/mL in MeOH:AC (98:2),1ml