Erythrosine
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Erythrosine
structure -
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CAS No:
16423-68-0
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Formula:
C20H8I4O5.2Na
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Chemical Name:
Erythrosine
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Synonyms:
Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one,3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-,sodium salt (1:2);Fluorescein,2′,4′,5′,7′-tetraiodo-,disodium salt;Erythrosine B;Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one,3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-,disodium salt;Erythrosine BS;Erythrosine;FD and C Red No. 3;Erythrosin;1427 Red;1671 Red;C.I. 45430;Aizen Erythrosine;Calcocid Erythrosine N;Canacert Erythrosine BS;Cilefa Pink B;C.I. Acid Red 51;C.I. Food Red 14;Dolkwal Erythrosine;Edicol Supra Erythrosine A;Erythrosine 3B;Erythrosine Bluish;Erythrosine Extra Conc. A Export;Erythrosine Extra Pure A;Erythrosine K-FO;Erythrosine B-FO;Erythrosine TB;Erythrosine TB Extra;Hexacert Red No. 3;Hexacol Erythrosine BS;Maple Erythrosine;New Pink Bluish Geigy;Tetraiodofluorescein sodium salt;Usacert Red No. 3;Erythrosine Extra;Food Dye Red 3;Acid Red 51;Food Red 14;D and C Red No. 3;2′,4′,5′,7′-Tetraiodofluorescein disodium salt;Erythrosin B sodium salt;FD&C Red No. 3;2,4,5,7-Tetraiodofluorescein disodium salt;Food Color Red 3;Food Red No. 3;E 127;Erythrosine extra bluish;S 887;Japan Red 3;Aizen Food Red 3;Japan Red No. 3;Erythrosine I;FDC Red 3;Synerid;Edicol Supra Erythrosin AS;Erythrosin BS;Red 1799;FDC Red 3 dye;Erythrosin B;Ceplac;FD and C Red 3;Food Red 3;D&C Red No. 3;Erythrosine 307046;Water Pink 176575;Neelicol Erythrosine;FD & C Red No. 3-307020;Erythrosine 36003;1342-20-7;1342-21-8;1342-28-5;16904-63-5;27540-70-1;72027-96-4;111634-12-9;145361-15-5;198832-03-0;658700-90-4
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CAS No:
Description
Red to brown powder ChEBI: An organic sodium salt that is the disodium salt of 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-8a,10a-dihydroxanthen-9-yl)benzoic acid.FD & C Red No. 3 is principally the disodium salt of the monohydrate of 9(ocarboxyphenyl)-6-hydroxy-2,4,5,7-tetraiodo-3H- xanthen-3-one. The colorant is a brown powder that dissolves in water to give a solution red at neutrality, with a yellow-brown precipitate in acid, and with a red precipitate in base.
Characteristics
81.6
-0.05 (est)
Deep red to brown Fine Powder
0.8-1.0 kg/cu m (limit)
142~144℃
693.2ºC at 760 mmHg
285℃
100g/l
Store at +5°C to +30°C.
2.22E-16mmHg at 25°C
LD50 in male, female mice, male, female rats (g/kg): 0.40, 0.32, 0.34, 0.37 i.p.; 6.7, 6.9, 7.4, 6.8 orally (Butterworth); LD50 in mice, rats (mg/kg): 2558, 2891 orally (Yankell)
Safety Information
NONH for all modes of transport
3
22
36
LM5950000
Xn
Stable. Incompatible with strong oxidizing agents.
P264, P270, P273, P301+P312, P330, P501
H302-H413
Erythrosine Use and Manufacturing
The product formed by the condensation of benzaldehyde-4-sulfonic acid and diethyl m-aminophenol is dehydrated by concentrated sulfuric acid and oxidized with potassium dichromate, permanganate or ferric chloride to make a sodium salt.
Biological stain; color additive.
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