Sulfamerazine, 100µg/mL in Acetonitrile, 1ml

Formaldehyde (0.5 ppm)

4-Nitrophenol-d4, 1000µg/ml in MeOH, 1ml

3,4,5-Trifluoro-4'-(trans-4-propylcyclohexyl)biphenyl, >98%, 1g