Difference between revisions of "Ellagic acid"
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== Description == | == Description == | ||
| − | A cream-color powder formed as a metabolite from the oxidation of [ | + | A cream-color powder formed as a metabolite from the oxidation of [[gallic acid]]. Ellagic acid occurs naturally in [[gall|galls]] as well as [[leather]] that have been tanned with galls. It was isolated as a distinct compound by Chevreul in 1815. Ellagic acid is used as a [[tannin]] and as a pale-green to gray [[dye]] with [[iron]] [[mordant|mordants]]. It is being studied as a cancer preventing drug. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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[[[SliderGallery rightalign|ellagic acid.jpg~Chemical structure]]] | [[[SliderGallery rightalign|ellagic acid.jpg~Chemical structure]]] | ||
| − | == | + | == Risks == |
| + | |||
| + | * Fisher Scientific: [https://fscimage.fishersci.com/msds/22895.htm MSDS] | ||
| + | ==Physical and Chemical Properties== | ||
Soluble in alkali and pyridine. Slightly soluble in water or ethanol. Insoluble in ether. | Soluble in alkali and pyridine. Slightly soluble in water or ethanol. Insoluble in ether. | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | >300 | + | | >300 C |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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|} | |} | ||
| − | == | + | == Resources and Citations == |
| − | |||
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| − | |||
| − | |||
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry | ||
| − | * | + | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 |
| − | * | + | * F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876 Comment: p. 321 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 14:28, 1 August 2022
Description
A cream-color powder formed as a metabolite from the oxidation of Gallic acid. Ellagic acid occurs naturally in galls as well as Leather that have been tanned with galls. It was isolated as a distinct compound by Chevreul in 1815. Ellagic acid is used as a Tannin and as a pale-green to gray Dye with Iron mordants. It is being studied as a cancer preventing drug.
Synonyms and Related Terms
benzoaric acid; bezoardic acid; 4,4',5,5',6,6'-hexahydrodiphenic acid 2,6,2'6'-dilactone
Risks
- Fisher Scientific: MSDS
Physical and Chemical Properties
Soluble in alkali and pyridine. Slightly soluble in water or ethanol. Insoluble in ether.
UV max 366, 255 nm
| Composition | C14H6O8 |
|---|---|
| CAS | 476-66-4 |
| Melting Point | >300 C |
| Molecular Weight | mol. wt.=302.19 |
Resources and Citations
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876 Comment: p. 321