What is a colorless, oily liquid, formerly obtained by distillation of colophony. It is regarded as a polymeric form of terebenthene. Called also diterebene called?

colophene — A colorless, oily liquid, formerly obtained by distillation of colophony. It is regarded as a polymeric form of terebenthene. Called also diterebene. (Webster's 1913.)

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