CAS No 52609-50-4 , 2-propenoic acid, 2-methyl-, methyl ester,polymer with butyl-2-propenoate, ethenylbezene,n-(hydroxymethyl)-2-propenamide, and 2-propenoic acid 2-propenoic acid,2-methyl-,methyl ester,polymer with butyl-2-propenoate,ethenylbezene,n-(hydroxymethyl)-2-propenamide,and 2-propenoic acid