Anthrarobin
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Anthrarobin is a yellowish-white, odorless powder used in dermatology as a substitute for chrysarobin. It acts as an antiseptic due to its oxidation properties and is applied as an ointment or alcoholic solution because it is less toxic and irritating to the skin.
Encyclopedia entry (1928–1936)
ANTHRAROBIN, Anthrarobinum, C14H6O(OH)3, dioxyanthranol, a reduction product of commercial alizarin, is a yellowish-white powder, odorless, almost tasteless, insoluble in water, and easily soluble in alkalis. The antiseptic properties of anthrarobin are due to its capacity to be oxidized. It is used in skin diseases instead of chrysarobin, as a less toxic and less skin-irritating preparation, in the form of a 10-20% ointment or in an alcoholic solution. The commercial preparation under the same name is highly variable in composition.
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“Anthrarobin.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/anthrarobin/