The molecule is a monocarboxylic acid anion resulting from the deprotonation of the carboxy group of (Z)-2-methylureidoacrylic acid. The major species at pH 7.3. It derives from an acrylate. It is a conjugate base of a (Z)-2-methylureidoacrylic acid.
(Z)-3-(carbamoylamino)-2-methylprop-2-enoate