Rufigallol or 1,2,3,5,6,7-hexahydroxy-9,10-anthraquinone is an organic compound with formula C
14O
8H
8. It one of several hydroxyanthraquinones. It occurs naturally being derived from gallic acid.
| Names | |
|---|---|
| Preferred IUPAC name
1,2,3,5,6,7-Hexahydroxyanthracene-9,10-dione | |
| Other names
Rufigallic acid; 1,2,3,5,6,7-Hexahydroxy-9,10-anthraquinone; 1,2,3,5,6,7-Hexahydroxyanthracene-9,10-dione | |
| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ChemSpider | |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| C14H8O8 | |
| Molar mass | 304.210 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The compound is soluble in dioxane, from which it crystallizes as red needles that sublime without melting at 365 °C.[1] It can be obtained by treating gallic acid with concentrated sulfuric acid and then with sodium hydroxide.[1] It is prepared by acid-catalyzed condensation of a pair of gallic acid molecules.[2]
Rufigallol is particularly toxic to the malarial parasite Plasmodium falciparum and has a synergistic effect in combination with the antimalarial drug exifone, which has structural similarities to rufigallol.[3]
Rufigallol forms a crimson-colored complex with beryllium, aluminium, thorium, zirconium and hafnium, and this reaction has been used for the spot and spectrophotometric determination of beryllium in low concentrations.[1]
See also
editReferences
edit- 1 2 3 Azim, M. A.; Ayaz, A. A. (1969). "Spectrophotometric determination of beryllium". Mikrochimica Acta. 57: 153–159. doi:10.1007/BF01216677.
- ↑ Bisoyi, Hari Krishna; Kumar, Sandeep (2007). "Microwave-assisted synthesis of rufigallol and its novel room-temperature liquid crystalline derivatives". Tetrahedron Letters. 48 (25): 4399–4402. doi:10.1016/j.tetlet.2007.04.094.
- ↑ Winter, R. W.; Cornell, K. A.; Johnson, L. L.; Ignatushchenko, M.; Hinrichs, D. J.; Riscoe, M. K. (1996). "Potentiation of the antimalarial agent rufigallol". Antimicrobial Agents and Chemotherapy. 40 (6): 1408–1411. doi:10.1128/AAC.40.6.1408. PMC 163340. PMID 8726010.

