Description and usage notes:
From Givaudan: “Odor: Woody, Ambery, Olibanum. Use: Agarwood is a classical material used in perfumery. When this wood is infected by fungi, it develops dark streaks charged with an odouriferous oleoresin. The darkest grade, black or true agar, resembles black stone because of the intense impregnation of oil. This resin is highly valuable due to its rich, complex, powerful, woody-ambery scent. It is however an extremely expensive material that is difficult to find. Black Agar Givco is a new base reflecting the typical odour of the black resin of agarwoood. This complex, powerful formulation with a resinous character brings together olibanum and balsamic/oriental notes.”
See also Oud Synthetic for the Firmenich equivalent.