The molecule of the title compound [systematic name: N-(carbamoylmethyl)prop-2-enamide], C5H8N2O2, which can be radically polymerized to polymers with thermoresponsive behavior in aqueous Support Stockings - Compression Hosiery solution, consists of linked essentially planar acrylamide and amide segments [maximum deviations = 0.054 (1) and 0.009 (1) Å] with an angle of 81.36 (7)° between their mean planes.In the crystal, N—H.
O hydrogen bonding leads to an infinite Keyring two-dimensional network along (100).