Metazachlor-2-hydroxy, 10mg

Heptachlor-endo-epoxide (trans-, isomer A), 100 ng/µl, 1ml

4-Nitrophenol, 1000mg

17 alpha(H),21ß(H)-(22S)-Homohopane, 50µg/mL in Isooctane, 1ml