D3-Nicotine salicylate, 10mg

1,2,3,6,7-Pentachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane

Metformin-d6 hydrochloride (dimethyl-d6),100 µg/mL,MeOH,1mL,

Isobenzan