17ß(H),21 alpha(H)-Hopane, 100µg/mLin isooctane, 1ml

rac-(1R,2R,5R,6R,9S,10S)-5,6-dibromo-1,10,11,, 1.2ml x 50ug/ml, toluene

Propoxur, 250mg

2,2',3,3',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane