D4-Sulfathiazole, 10mg

1,2,3,4,6,9-Hexachloro[13C12]dibenzofuran, 1.2ml x 1ug/ml, nonane

2,2',3,4,4',5',6-Heptabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Carbonyl Compounds as DNPH, in Acetonitrile, 1ml