3-((2S)-1-Methyl-2-pyrrolidinyl)pyridine (2R,3R)-2,3-dihydroxybutanedioate 3275-73-8 Nicotine tartrate Pyridine, 3-((2S)-1-methyl-2-pyrrolidinyl)-, (2R,3R)-2,3-dihydroxybutanedioate Pyridine, 3-(1-methyl-2-pyrrolidinyl)-, (S)-, (R-(R*,R*))-2,3-dihydroxybutanedioate