Photoresist Chemicals 2H-1,7-Dioxacyclopent[cd]indene-5-carboxylicacid, 2a,4a,5,6,7a,7b-hexahydro-2a,6-dihydroxy-, methyl ester,(2aS,4aS,5S,6R,7aS,7bS)- (9CI) Cas:87561-42-0 Molecular Formula:C11H14 O6