Acid Orange 6
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | Acid Orange 6 | ||||||||||||||||||
other names | |||||||||||||||||||
Molecular formula |
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Brief description |
reddish yellow powder |
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properties | |||||||||||||||||||
Molar mass | 316.27 g mol −1 | ||||||||||||||||||
Physical state |
firmly |
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solubility |
soluble in water and ethanol |
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safety instructions | |||||||||||||||||||
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Toxicological data | |||||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
CI Acid Orange 6 ( common name chrysoine resorcinol) is the sodium salt of 4 - [(2,4-dihydroxyphenyl) diazenyl] benzenesulfonic acid, a to the acid dyes counting azo dye . Thename Chryosin S is usedfor the free acid .
Chryosin S used to be approved as a food coloring with the E number 103. Acid Orange 6 is still used as a pH indicator , as it changes its color from yellow to orange in the pH range of 11.0–12.8.
The dye is one of the tropaeolin dyes.
Individual evidence
- ↑ Entry on CI 13015 in the CosIng database of the EU Commission, accessed on December 28, 2019.
- ↑ a b c d e f Entry on Tropaeolin O at TCI Europe, accessed on December 27, 2019.
- ↑ Shmuel Yannai: Dictionary of Food Compounds with CD-ROM: Additives, Flavors, and Ingredients . CRC Press, 2004, ISBN 1-58488-416-9 , pp. 353 ( limited preview in Google Book search).
- ↑ External identifiers of or database links to Chrysoine S : CAS number: 2050-34-2, EC number: 218-087-0, ECHA InfoCard: 100.016.444 , PubChem : 11035 , ChemSpider : 10467544 , Wikidata : Q27289426 .
- ↑ Directive 62/2645 / EEC (PDF) of the Council for the approximation of the laws of the member states for coloring substances that may be used in food.