Sanguisorbic acid
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| Names | |
|---|---|
| IUPAC name
3-(5-Carboxy-2,3-dihydroxyphenoxy)-4,4’,5,5’,6,6’-hexahydroxy-2,2’-biphenyldicarboxylic acid | |
| Identifiers | |
| ChemSpider | 71308268 |
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| Jmol-3D images | Image |
| PubChem | 12444662 |
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| Properties | |
| C21H14O15 | |
| Molar mass | 506.33 g/mol |
| Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
| Infobox references | |
Sanguisorbic acid is a constituent of some ellagitannins. It is constituted by a hexahydroxydiphenic acid unit linked by an O-C bond to a gallic acid. The differences with its isomers, valoneic acid and nonahydroxytriphenic acid, are that the hydroxyl that links the hexahydroxydiphenoyl (HHDP) group to the galloyl group belongs to the galloyl group in valoneic acid, while in nonahydroxytriphenic acid, the hexahydroxydiphenic acid unit is linked by an C-C bond to gallic acid.
comparison of structures of valoneic and sanguisorbic acids
It is found in 2,3-O-hexahydroxydiphenoyl-4,6-O-sanguisorboyl-(α/β)-glucose, an ellagitannin found in Rubus sanctus.[1] It is also found in lambertianin A, B, C and D, all ellagitannins found in Rubus lambertianus.[2]
See also
- Sanguisorbic acid dilactone
- Valoneic acid
External links
References
- ↑ Hussein, Sahar A.M; Ayoub, Nahla A; Nawwar, Mahmoud A.M (2003). "Caffeoyl sugar esters and an ellagitannin from Rubus sanctus". Phytochemistry 63 (8): 905–11. doi:10.1016/S0031-9422(03)00331-5. PMID 12895538.
- ↑ Tanaka, T; Tachibana, H; Nonaka, G; Nishioka, I; Hsu, FL; Kohda, H; Tanaka, O (1993). "Tannins and related compounds. CXXII. New dimeric, trimeric and tetrameric ellagitannins, lambertianins A-D, from Rubus lambertianus Seringe". Chemical & pharmaceutical bulletin 41 (7): 1214–20. doi:10.1248/cpb.41.1214. PMID 8374992.
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