no-hetero atom in it but it has two double bond brings to slightly polar even though it is more of non-polar nature & its reactivity towards other organic compounds are less even though it will oxidise further comparatively less in reactivity. it will dissolve the polymeric material as it is non-polar nature, usually water can dissolve only the polar materials and what we are calling as stain is polymeric compound which can be removed by non-polar solvents, compared to other petroleum solvents, this is pleasant in smell makes it to primary level.