WS Trace Elements #2

2,4-Dihydroxybenzophenone-13C6, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 131-56-6 (unlabelled)

Malathion, 100 µg/ml, Toluene, 1ml

5 alpha(H),17 alpha(H),(20R)-3ß-Acetoxycholest-8(14)-ene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6562-21-6