castoréum

CONT: Les [...] produits naturels d'origine animale, [...] musc, civette, ambre et castoréum ont pratiquement disparu du marché; leurs odeurs caractéristiques ont été reproduites par la synthèse chimique, à l'exception peut-être du castoréum, dont l'odeur est extrêmement complexe.
OBS: Castoréum : Ce que l'on appelle «rognon de castor», au Canada.

CONT: Castor is a secretion found in both sexes of the beaver, and it accumulates in two pear-shaped bags on the abdomen of the animal. The sacs are about the length of a finger, and at the thickest point are about the diameter of the thumb. They contain a greasy mass of yellowish-brown, reddish or blackish viscous substance. (""A Subtle Something"" by Charles J. McGuirk Saturday Evening Post. Dec. 4, 1926).
CONT: An animal secretion, the castor, used in perfumery, is chiefly employed as a fixative. It consists of the dried membranous follicles of the beaver. They are filled with a strong smelling secretion which, when diluted, is not disagreeable, the odour being due to an essential oil it contains. (The Mystery and Lure of Perfume, 1969, p. 205).