Castoreum是來自成熟北美海狸和歐洲海狸的鑄造囊的滲出物。Castoreum來自希臘詞Kastor意味著海狸。Castoreum是從動物源施法者加拿大人獲得的。蓖麻囊在細胞水平上不是真正的腺體（內分泌或外側），因此對這些結構的引用作為Proputial腺體或蓖麻腺是不合格的。蓖麻囊是一種香味腺體。古代評論者的作品中提到了誤認為這款麝香物質的古代睾丸的作品中提到了一係列的古代評論員。In his tales, Aesop, the prominent Greek fabulist, retells the widespread hunter’s fallacy that cornered beaver bites off its own testicles, only to throw them to the hunter and so escape the death.And beavers were not hunted for their testicles but for their meat and waterproof fur, which is used to make coats. For this reason, castoreum was even used as an aphrodisiac. But now one company in Canada is farming beavers for Fur Coats and Castoreum is a by product. This now perhaps is the only Animal Product , legally available and allowed for use.There are at least twenty-four compounds known to be constituents of beaver castoreum. Some of these have pheromonal activity. These are the phenols,4-ethylphenol and 1,2-dihydroxybenzene (catechol) and the ketones acetophenone and 3-hydroxyacetophenone. Five additional compounds noted are 4-methyl-1,2-dihydroxybenzene (4-methylcatechol), 4-methoxyacetophenone, 5-methoxysalicylic acid, salicylaldehyde, and 3-hydroxybenzoic acid. Other neutral compounds are oxygen-containing monoterpenes such as 6-methyl-l-heptanol, 4,6-dimethyl-l-heptanol, isopinocamphone, pinocamphone, two linalool oxides and their acetates. Other compounds are: benzoic acid, benzyl alcohol, borneol, o-cresol, 4-(4'-hydroxyphenyl)-2-butanone, hydroquinone, phenol. All those compounds are gathered from plant food. It also contains Nupharamine alkaloids and castoramine and cis-cyclohexane-1,2-diol.Acute toxicity studies in animals indicate that castoreum extract is nontoxic by both oral and dermal routes of administration and is not irritating or phototoxic to skin. Skin sensitization has not been observed in human subject tests. Castoreum extract possesses weak antibacterial activity. A long historical use of castoreum extract as a flavoring and fragrance ingredient has resulted in no reports of human adverse reactions. On the basis of this information, low-level, long-term exposure to castoreum extract does not pose a health risk. The objective of this review was to evaluate the safety-in-use of castoreum extract as a food ingredient.Castoreum is more liberally applied to denote the resinoid extract resulting from the dried and alcohol tinctured beaver castor. The dried beaver castor sacs are generally aged for two or more years to mellow and for their raw harshness to dissipate. It is used extensively in perfumery. It’s very pungent, strong animalic note makes it an interesting item in men’s perfume, fourgeres, chypres, oriental basis leather notes. The warm animal sweet leathery note of castoreum helps the accords achieve sensuality.Bases offered by BMV Fragrances help to create magical fragrances and accords with sensuality and class.