1,3-Propanesultone
1,4-Bis(2-hydroxyethoxy)-2-butyne
1,4-Butane Sultone
1-(2-Hydroxy-3-sulfopropyl)-pyridinium Betane
1-Diethylamino-2-propyne
2,5-Dimethyl-3-hexyne-2,5-diol
2-Chlorobenzaldehyde
2-Mercaptobenzimidazole
2-Mercaptothiazoline
2-Propynylamine
3-(1-Pyridinio)-1-propanesulfonate
3-Buten-1-ol