Tungsten (W)

2,2',4,4'-Tetrabromo-6-hydroxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

Disulfoton-sulfone, 10.0 µg/ml, Acetonitrile, 10

4-Hydroxy-3-methoxymandelic Acid, 100mg