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

1,2,4,5-Tetrachlorobenzene, 1000µg/ml in MeOH, 1ml

17 alpha(H),21ß(H)-(22RS)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 67069-13-0

(-)-Epicatechin-3-gallate, 10mg