Caffeine, 100 µg/ml, Methanol, 1ml

Ponceau 4R (E 124), 1g

n-Nonane-d20, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 121578-11-8

Dichlorodifluoromethane, 1000µg/ml in MeOH, 1ml