D5-threo-Chloramphenicol, 100 µg/ml, Acetone, 1m

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy 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)

(+)-(S)-Chlorpheniramine maleate,neat,neat,10mg,

1,2,3-Triphenylbenzene