Caffeine-13C3, 5mg

Bromodichloromethane, in Certan bottle, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 75-27-4

d4 C27 alpha alpha alpha (20R)-Cholestane, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 205529-74-4

3-Perfluoroheptyl propanoic acid (7:3), 1.2ml x 50ug/ml, methanol