Difference between revisions of "Ellagic acid"

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

Chemical structure

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

@@ Line 1: / Line 1: @@
 == 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.
+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 ==
@@ Line 9: / Line 9: @@
 [[[SliderGallery rightalign|ellagic acid.jpg~Chemical structure]]]
-== Other Properties ==
+== 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.
@@ Line 24: / Line 27: @@
 |-
 ! scope="row"| Melting Point
-| >300
+| >300 C
 |-
 ! scope="row"| Molecular Weight
@@ Line 30: / Line 33: @@
 |}
-== Hazards and Safety ==
+== Resources and Citations ==
-Fisher Scientific: [https://fscimage.fishersci.com/msds/22895.htm MSDS]
-== Authority ==
 * ''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
+* 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
+* F. Crace-Calvert, ''Dyeing and Calico Printing'', Palmer & Howe, London, 1876  Comment: p. 321
 [[Category:Materials database]]