Dammar gum

Dammar, also called dammar gum, or damar gum, is a resin obtained from the tree family Dipterocarpaceae in India and Southeast Asia, principally those of the genera Shorea or Hopea (synonym Balanocarpus).

The gum varies in colour from clear to pale yellow, while the fossilised form is grey-brown.

Dammar gum is a triterpenoid resin, containing many triterpenes and their oxidation products.

[1] Fresh dammar gum consists of a mixture of compounds; primarily hydroxydammarenone, dammarenolic acid, and oleanonic aldehyde.

[4] The gum is stable[citation needed], probably combustible and incompatible with strong oxidising agents.