Spiro[norbornane-7,4'-tetracyclo[5.2.2.02,6.03,5]undecane]-2,3-dicarboxylicanhydride (8CI);Spiro[bicyclo[2.2.1]heptane-7,4'-tetracyclo[5.2.2.02,6.03,5]undecane-2,3-dicarboxylicanhydride
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