Caffeine, 100µg/ml in MeOH, 1ml

Theophylline-d6 (dimethyl-d6), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 11790-39-8

2-Phenylphenol

Benzo(b)fluoranthene-d12, 10µg/ml in CY, 1ml