.alpha.-Hydroxypropionitrile 2-Hydroxypropanenitrile 2-Hydroxypropionitrile 78-97-7 Acetaldehyde, cyanohydrin Acetocyanohydrin LACTONITRILE NSC7764 Propanenitrile, 2-hydroxy- Propionitrile, 2-hydroxy- WLN: QY1&CN