Internal standard 2, 2000g/ml in MeOH, 1ml

2,6-Dihydroxy-9,10-anthraquinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 84-60-6

Doxepin hydrochloride

Ethanol (1% w/v), 10mg/mL in water, 1ml