Monoethanolamine (C₂H₇NO) is a primary amine from the amino alcohol family. It appears as a clear, colorlessto pale yellow viscous liquid with an ammonia-like odor. Due to the presence of both hydroxyl (-OH) and amino (-NH₂) functional groups, it exhibits amphoteric behavior (acting as both an acid and a base) and is highly soluble in water and other polar solvents.