2-Propenoic acid, 2-methyl-, 7-oxo-1,3,5-cycloheptatrien-1-yl ester, homopolymer 29832-29-9 NSC83678 Poly[2-[(7-oxo-1,3,5-cycloheptatrien-1-yloxy)carbonyl]-2-methylethylene] WLN: /L7VJ BOVX*1&1*/