Potassium (K)

Tri(butylcresyl)butane, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1843-03-4

4-Nitrophenol, 100 µg/ml, Methanol, 5ml

d2 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Osooctane, 1ml