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 ambers

Table 1 Elemental analyses^a

Sample	C (wt.%)	H (wt.%)	N (wt.%)	O+S (wt.%)^b	Nominal formula (based on C₁₅)
Modern Dammar polymer	83.7	10.7	<0.05	5.6	C₁₅H₂₃(O + S)_0.75
Fossil Dammar polymer	84.2	10.4	<0.05	5.4	C₁₅H₂₂(O + S)_0.72
Polycadinene (III^c)					C₁₅H₂₄

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