Similar names: ent-17-Methylmorphinan-3-ol (L)-Tartrate; Dextromethorphan Hydrobromide Imp. B (EP) as (L)-Tartrate; Dextrorphan Tartrate; O-Desmethyldextromethorphan Tartrate; Morphinan-3-ol, 17-methyl-, (9α,13α,14α)-, (2R,3R)-2,3-dihydroxybutanedioate (1:1); Morphinan-3-ol, 17-methyl-, (9α,13α,14α)-, (2R,3R)-2,3-dihydroxybutanedioate (1:1) (salt) (9CI); Morphinan-3-ol, 17-methyl-, (9α,13α,14α)-, [R-(R*,R*)]-2,3-dihydroxybutanedioate (1:1) (salt); Dextrorphan bitartrate; NIH 4591; d-3-Hydroxy-N-methylmorphinan tartrate