17 alpha(H),21 alpha(H)-Hopane, 50µg/mL in Isooctane, 1ml

3,3',5,5'-Tetrabromobisphenol A bis(2-hydroxyethyl) ether bisacrylate,50 µg/mL,toluene,1mL Certan,

1-(4-Chlorophenyl)urea, 100mg

(+/-)-Geosmin-d5,100 µg/mL,MeOH,1mL