Zaleplon-?d5 (N-?ethyl-?d5),100 µg/mL,MeOH,1mL

Endosulfan-sulfate, 100 µg/ml, Acetonitrile, 5ml

2,4,5-T-methyl ester

Arochlor 1248 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 12672-29-6