Difference between revisions of "Juglone"
Jump to navigation
Jump to search
(username removed) |
|||
(3 intermediate revisions by 3 users not shown) | |||
Line 1: | Line 1: | ||
== Description == | == Description == | ||
− | A brown dye obtained from the husks of walnuts, ''Juglans regia''. Juglone also acts as a natural [ | + | A brown dye obtained from the husks of walnuts, ''Juglans regia''. Juglone also acts as a natural [[herbicide]], providing a plant-free region for the seed to grow. |
− | See also [ | + | See also [[walnut shell]]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Line 9: | Line 9: | ||
5-hydroxy-1,4-naphthoquinone; CI 7550; Natural Brown 7; nucin; regianin; juglona (Esp., Port.) | 5-hydroxy-1,4-naphthoquinone; CI 7550; Natural Brown 7; nucin; regianin; juglona (Esp., Port.) | ||
− | == | + | == Physical and Chemical Properties == |
Yellow crystals. Absorption max = 520 nm | Yellow crystals. Absorption max = 520 nm | ||
Line 27: | Line 27: | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| 174.16 | | 174.16 | ||
+ | |- | ||
+ | ! scope="row"|CAS | ||
+ | | 451-39-0 | ||
|} | |} | ||
− | == | + | == Resources and Citations == |
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | ||
Line 37: | Line 40: | ||
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5282 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5282 | ||
− | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Amensalism." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Amensalism." (Accessed 1 Sept. 2004). |
[[Category:Materials database]] | [[Category:Materials database]] |
Revision as of 11:50, 28 October 2020
Description
A brown dye obtained from the husks of walnuts, Juglans regia. Juglone also acts as a natural Herbicide, providing a plant-free region for the seed to grow.
See also Walnut shell.
Synonyms and Related Terms
5-hydroxy-1,4-naphthoquinone; CI 7550; Natural Brown 7; nucin; regianin; juglona (Esp., Port.)
Physical and Chemical Properties
Yellow crystals. Absorption max = 520 nm
Soluble in chloroform, benzene, alcohol, ether.
Alkaline solutions turn a reddish-purple color
Composition | C10H6O3 |
---|---|
Melting Point | 155 |
Molecular Weight | 174.16 |
CAS | 451-39-0 |
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- John S. Mills, Raymond White, The Organic Chemistry of Museum Objects, Butterworth Heineman, London, 2nd ed., 1994
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5282
- Encyclopedia Britannica, http://www.britannica.com Comment: "Amensalism." (Accessed 1 Sept. 2004).