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

Acetochlor ESA sodium salt, 100ug/ml in MeOH, 1ml

Metformin-d6 Hydrochloride, 1mg

5-Isopropyl-2-methylphenol, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 499-75-2