Figure 12From: The nature and fate of natural resins in the geosphere. Part X.† Structural characteristics of the macromolecular constituents of modern Dammar resin and Class II ambersStructural characteristics of a minor olefin present in modern Dammar polymer. This structure is isomeric with the secondary olefin illustrated in Fig. 11. See Additional file 8 and move your mouse over the atom to see the NMR resonances.Back to article page