Caffeine, 1000µg/ml in MeOH, 1ml

2-Phenyldibenzofuran, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 78210-31-8

Diazepam-d5, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 65854-76-4

DNPH-Mix 2, 215-700µg/mL in Acetonitrile, 1ml