The crystal structure of monoethanolamine hydrochloride is triclinic P1 with two formula units in a cell of dimensions a = $4.42pm0.02$, b = $7.44pm0.02$, c = $7.48pm0.02$, $alpha$ = $102.4pm0.3$, $eta$ = $91.1pm0.3$, $gamma$ = $77.2pm0.3^{circ}.$ The configuration of monoethanolamine is a gauche form with dihedral angle, $90^{circ}$. The nitrogen atom forms four hydrogen bonds, three to Cl- ions(3.15, 3.24, $3.28AA)$ and one to a hydroxyl group of another molecule (N${cdot}{cdot}{cdot}$O, $2.90{AA})$. The oxygen also forms two such bonds, one to a Cl- ion $(3.14AA)$, one to an amine group of another molecule (O${cdot}{cdot}{cdot}$N, $2.90{AA}).$ Molecules are linked into two-dimensional network by hydrogen bonds