The essential oil from basil contains high concentrations of linalool and methyl chavicol (estragole), in a ratio of about 3:1.Other constituents include: 1,8-cineole, eugenol, and myrcene, among others. The clove scent of sweet basil is derived from eugenol. The aroma profile of basil includes 1,8-cineole and methyl eugenol.
Basil Essential Oil Egyptian CAS 8015-73-4
Sweet Basil Oil is usually pale yellow or almost colorless. Its odor is sweet-spicy, slightly green, fresh, with a faint balsamic woody undertone and a lasting sweetness.
Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (p. 98).