beta-Endosulfan, 100 µg/ml, Ethyl acetate, 5ml

p-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1718-51-0

4-n-Nonylphenol, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 104-40-5

1-Chloro-3-nitrobenzene, 1000µg/ml in MeOH, 1ml