Emodin
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Emodin refers to two compounds: frangula-emodin and aloe-emodin. Frangula-emodin, found in various plants like buckthorn and rhubarb, has laxative effects, while aloe-emodin, present in senna and aloe species, also acts as a mild laxative.
Encyclopedia entry (1928–1936)
Emodin. The term "emodin" is applied to two compounds: o k on s on on s on n°C>C(OH)CH> OC(OH) CH3 o l o 1. Frangula-emodin 2. Aloe-emodin E. of buckthorn, also called cascarin, purpurin, is found in common and American buckthorn, Chinese rhubarb, in the roots of some species of sorrel, and in the berries of buckthorn. Shining orange-red needles, melting at 250-255°, easily soluble in 4 3 alcohol, glacial acetic acid, ether, and chloroform; dissolves in alkalis with a cherry-red coloration. E. is responsible for the laxative effect of the above-mentioned plants in a dose of 0.1. Aloe-E. is found in various species of senna, in the leaves of senna. Small yellow-orange needles, melting at 223-224°, easily soluble in alcohol, ether, and alkalis. In doses of 0.2-0.3 it causes laxation without side effects. Pharmacological and therapeutic data, see Buckthorn.
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“Emodin.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/emodin/