Salicylaldehyde be prepared from the corresponding phenol by the Duff reaction, or by treatment with paraformaldehyde in the presence of magnesium chloride and a base. Salicylaldehyde was identified as a characteristic aroma component of buckwheat. It is also one of the components of castoreum, the exudate from the castor sacs of the mature North American beaver ("Castor canadensis") and the European beaver ("Castor fiber"), used in perfumery. Furthermore, salicylaldehyde occurs in the larval defensive secretions of several leaf beetle species that belong the subtribe Chrysomelina. An example for a leaf beetle species that produces salicylaldehyde is the red poplar leaf beetle
Animal welfare and rights in South Korea the lives, safety, and welfare of animals and to promote the emotional development of people so as to respect the lives of animals by providing for matters necessary to prevent cruelty to animals and to protect and manage animals appropriately". The law prohibits cruelty against vertebrates such as cattle, horses, pigs, dogs, cats, rabbits, chickens, ducks, goats, sheep, deer, foxes, and mink, but excluding fish, crustaceans, and other animals commonly used by humans. Cruelty includes killing an animal by a cruel method or in public or in the presence of an animal of the same species; injuring an animal with