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| Clinical data | |
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| Other names | Rhabarberone | 
|  Routes of administration  | Oral | 
| ATC code | 
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| ECHA InfoCard | 100.006.884 | 
| Chemical and physical data | |
| Formula | C15H10O5 | 
| Molar mass | 270.240 g·mol−1 | 
| 3D model (JSmol) | |
| Melting point | 223 to 224 °C (433 to 435 °F) Sublimes in CO2 stream | 
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Aloe emodin (1,8-dihydroxy-3-(hydroxymethyl)anthraquinone) is an anthraquinone and an isomer of emodin present in aloe latex, an exudate from the aloe plant. It has a strong stimulant-laxative action. [1] Aloe emodin is not carcinogenic when applied to the skin, although it may increase the carcinogenicity of some kinds of radiation. [2] [3]
Aloe emodin is found in the gel, sap or leaves of aloe vera, the socotrine aloe, Barbados aloe, and Zanzibar aloes, the bark of Frangula ( Rhamnus frangula ) and cascara sagrada ( Rhamnus purshiana ), the leaves of Senna ( Cassia angustifolia ), and the rhizome of rhubarb ( Rheum rhaponticum ).[ citation needed ] Aloe-emodin has not been found in Natal aloes.[ citation needed ]