1,2,4-Butanetriol, 1mg/ml in pyridine, 5 x 20ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

2-Methoxy-5-methylaniline, certified, 0.25g

Metribuzin, 1000µg/mL in MeOH, 1ml