Difference between revisions of "Ellagic acid"

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== Description ==
 
== Description ==
  
A cream-color powder formed as a metabolite from the oxidation of [http://cameo.mfa.org/materials/fullrecord.asp?name=gallic acid gallic acid]. Ellagic acid occurs naturally in [http://cameo.mfa.org/materials/fullrecord.asp?name=gall galls] as well as [http://cameo.mfa.org/materials/fullrecord.asp?name=leather leather] that have been tanned with galls. It was isolated as a distinct compound by Chevreul in 1815. Ellagic acid is used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=tannin tannin] and as a pale-green to gray [http://cameo.mfa.org/materials/fullrecord.asp?name=dye dye] with [http://cameo.mfa.org/materials/fullrecord.asp?name=iron iron] [http://cameo.mfa.org/materials/fullrecord.asp?name=mordant mordants]. It is being studied as a cancer preventing drug.
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A cream-color powder formed as a metabolite from the oxidation of [http://cameo.mfa.org/materials/fullrecord.asp?name=gallic%20acid gallic acid]. Ellagic acid occurs naturally in [http://cameo.mfa.org/materials/fullrecord.asp?name=gall galls] as well as [http://cameo.mfa.org/materials/fullrecord.asp?name=leather leather] that have been tanned with galls. It was isolated as a distinct compound by Chevreul in 1815. Ellagic acid is used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=tannin tannin] and as a pale-green to gray [http://cameo.mfa.org/materials/fullrecord.asp?name=dye dye] with [http://cameo.mfa.org/materials/fullrecord.asp?name=iron iron] [http://cameo.mfa.org/materials/fullrecord.asp?name=mordant mordants]. It is being studied as a cancer preventing drug.
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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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, Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982
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* 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, F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876  Comment: p. 321
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* F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876  Comment: p. 321
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Revision as of 07:30, 24 July 2013

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

Chemical structure

Ellagic acid.jpg


Other 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
Molecular Weight mol. wt.=302.19

Hazards and Safety

Fisher Scientific: MSDS

Authority

  • 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

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