Difference between revisions of "Xanthopurpurin"
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1,3-dihydroxyanthraquinone; CI 75340; purpuroxanthin; xantopurpurina (Esp., Port.) | 1,3-dihydroxyanthraquinone; CI 75340; purpuroxanthin; xantopurpurina (Esp., Port.) | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | Soluble in ethanol, benzene. | + | * Soluble in ethanol, benzene. |
| + | * Melting Point = 269-270 C | ||
| − | + | ==Resources and Citations== | |
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| − | + | * H.Schweppe, J.Winter, "Madder and Alizarin", ''Artists Pigments'', Volume 3, E. West FitzHugh (ed.), Oxford University Press: Oxford, 1997. | |
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[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 11:48, 22 June 2022
Description
Yellow needle crystals. Xanthopurpurin is one of the natural colorants extracted from Madder and other Rubiaceae family plants. It dissolves in alkalis to give a red color and turns yellow in acids.
Synonyms and Related Terms
1,3-dihydroxyanthraquinone; CI 75340; purpuroxanthin; xantopurpurina (Esp., Port.)
Physical and Chemical Properties
- Soluble in ethanol, benzene.
- Melting Point = 269-270 C
Resources and Citations
- H.Schweppe, J.Winter, "Madder and Alizarin", Artists Pigments, Volume 3, E. West FitzHugh (ed.), Oxford University Press: Oxford, 1997.