1(2H)-Pyrimidineacetic acid, 3-butyl-5-(3-(1-butyl-3-(carboxymethyl)hexahydro-2,4,6-trioxo-5-pyrimidinyl)-2-propenylidene)tetrahydro-2,4,6-trioxo- 133122-09-5 138601-98-6 3-Butyl-5-(3-(1-butyl-3-(carboxymethyl)-1,2,3,4-tetrahydro-6-hydroxy-2,4-dioxopyrimidin-5-yl)allylidene)tetrahydro-2,4,6-trioxo-2H-pyrimidine-1-acetic acid 47791-83-3 63059-36-9 71297-09-1 EINECS 263-814-7