The chemical components of benzene/ethanol extractives of fresh Eucalyptus urograndis wood chips were separated and identified by GC/ MS after enriching. Relative content of each chemical component was determined by area normalization. Thirty compounds representing 87.88% of the extractives which take on 42 peaks were identified. The most abundant and valuable constituents were 1, 2-benzenedicarboxylic acid, diisooctyl ester (17.53%), 1, 2- benzenedicarboxylic acid, bis (2- methylpropyl) ester (8.48%) , dibutyl phthalate (8.12%) , butan...