Dow FR-250, 100µg/ml in Isooctane, 1ml

Estriol

Sodium 1H,1H,2H,2H-perfluoro-1-[1,2-13C2]-hexane sulfonate (4:2), 50µg/ml in MeOH, 1,2ml

4,4´-Diamino-3,3´-dimethyldiphenyl methane, certified, 0.1g