Sulfathiazole, 100 µg/ml, Methanol, 1ml

(-)-Captopril-d3 (L-proline-2,5,5-d3),ca. 100 µg/mL,MeOH,1mL,

Hexachlorobenzene (HCB), 100µg/ml in CY, 5ml

4,4'-Diamino-3,3'-dimethyldiphenylmethane, 100mg