D5-threo-Chloramphenicol, 100µg/ml, Acetonitrile, 1ml

Endosulfan-I-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 203645-57-2

2-Methyl-4,6-dinitroanisole

5-Methyl-2,3',4,4'-tetrachlorodipehnylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.