114978-22-2 Poly(oxy(1-oxo-1,2-ethanediyl)oxy-1,2-ethanediyloxy(2-oxo-1,2-ethanediyl)oxymethylene(octahydro-4,7-methano-1H-indenediyl)methylene),alpha-((octahydro(((2-methyl-1-oxo-2-propenyl)oxy)methyl)-4,7-methano-1H-indenyl)methyl)-omega-((2-methyl-1-oxo-2-propenyl)oxy)-