O-Desmethylvenlafaxin, 100µg/ml in MeOH, 1ml

Sulfite (SO32-)

2,4-D-butyl ester, 250mg

1,2,3,6,7,8-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene