Doxepin hydrochloride

1,4-Anthraquinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 635-12-1

Surrogate Standard

4-Hydroxyisophthalic acid (4-Hydroxybenzene-1,3-dicarboxylic acid), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 636-46-4