beta-Endosulfan, 10.0 µg/ml, Ethyl acetate, 10ml

2,2',3,4,4',5,5',6-Octabromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

3,5-Dibromo[13C6]phenol, 1.2ml x 100ug/ml, toluene

delta-9-Tetrahydrocannabinolic acid A, 10.0 µg/ml,