Erythrosine
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | Erythrosine | ||||||||||||||||||
other names | |||||||||||||||||||
Molecular formula | C 20 H 6 I 4 Na 2 O 5 | ||||||||||||||||||
Brief description |
brown powder |
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properties | |||||||||||||||||||
Molar mass | 879.86 g mol −1 | ||||||||||||||||||
Physical state |
firmly |
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solubility |
soluble in water |
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safety instructions | |||||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Erythrosin is a pink- red food coloring (E 127), chemically the bis- sodium salt of 2,4,5,7-tetraiodine fluorescein . The compound can be classified both in the group of triphenylmethane dyes and of xanthene dyes .
Erythrosine contains a lot of iodine (57.7% iodine). The dye has recently fallen into the twilight due to possible allergy triggering and possible influencing of the thyroid functions (see also iodine intolerance ). The intervention in the thyroid function should z. B. can trigger uncontrolled impulsiveness in hyperactive children.
The use is currently only permitted to a limited extent: in cocktail cherries , emperor cherries , cosmetics (often in lipsticks ), in pet food, for coloring Easter eggs and as a drug additive, e.g. B. in alprazolam and certain methylphenidate preparations. Erythrosine is also occasionally used in dental plaque coloring tablets.
Web links
Individual evidence
- ↑ Entry on E 127: Erythrosine in the European database for food additives, accessed on June 16, 2020.
- ↑ a b c d data sheet Erythrosin B at AlfaAesar, accessed on June 2, 2018 ( PDF )(JavaScript required) .
- ↑ External identifiers or database links for erythrosine sodium : CAS number: 568-63-8, EC number: 629-600-6, ECHA InfoCard: 100.157.768 , PubChem : 27872 , ChemSpider : 25933 , Wikidata : Q72436325 .
- ↑ External identifiers or database links for erythrosine sodium anhydrate : CAS number: 16423-68-0, EC number: 240-474-8, ECHA InfoCard: 100.036.779 , GESTIS substance database : 129689 , PubChem : 27872 , ChemSpider : 25933 , Wikidata : Q27888290 .
- ↑ Roth, K. (2010): Chemical delicacies . 1st edition, Weinheim: Wiley-VCH. P. 144.