13C3-Caffeine, 100 µg/ml, Methanol, 1ml

Mono-n-butyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml

(2R,3R)rel2,3Dihydroxy-2-methylbutanoic Acid,500mg

bis(2-Ethylhexyl) phthalate