Erythrosine Properties, Molecular Formula, Applications - WorldOfChemicals

Erythrosine Properties


UTG-Molecule 3D Struture
Molecule Structure Image



Erythrosine, also known as Red No. 3, is an organoiodine compound, specifically a derivative of fluorone. It is cherry-pink synthetic, primarily used for food coloring. Erythrosine is the disodium salt of 2,4,5,7-tetraiodofluorescein. Its maximum absorbance is at 530 nm in an aqueous solution, and it is subject to photodegradation.Erythrosine used as a printing inks, biological stain,dental plaque disclosing agent,sensitizer for orthochromatic photographic films.Erythrosine is commonly used in sweets such as some candies and popsicles, and even more widely used in cake-decorating gels. It is also used to color pistachio shells.

Chemical Properties

Appearance Maroon powder
Boiling Point 693.2 °C at 760 mmHg
CAS Number 16423-68-0
Chemical Composition Sodium carbonate-->Zinc chloride-->Phthalic anhydride-->Benzaldehyde-->Ferric chloride-->Resorcine-->Potassium dichromate-->Aluminium hydroxide-->Aluminium sulfate-->3-Aminophenol-->Fluorescein-->Erythrosine aluminium lake-->Acid Red 51
Density 0.98
IUPAC Name 2-(6-hydroxy-2,4,5,7-tetraiodo-
3-oxo-xanthen-9-yl)benzoic acid
Melting Point >300 C (Decomposes)
Molar Mass 879.86 g/mol
Molecular Formula C20H6I4Na2O5
NFPA 704 H-2,F-1,R-0,C-NA
RTECS Number LM5950000
Synonyms ErythrosineB (6CI); Fluorescein, 2',4',5',7'-tetraiodo-, disodium salt (8CI);Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',6'-dihydroxy-2',4',5',7'-tetraiodo-, disodium salt (9CI); 1427 Red; 1671Red; 2,4,5,7-Tetraiodofluorescein disodium salt;2',4',5',7'-Tetraiodofluorescein disodium salt; Acid Red 51; Aizen Erythrosine;Aizen Food Red 3; Basovit Red 425E; C.I. 45430; C.I. Acid Red 51; C.I. Food Red14; Calcocid Erythrosine N; Canacert Erythrosine BS; Ceplac; Cilefa Pink B;Cogilor Red 312.10; D and C Red No. 3; D&C Red No. 3; Dolkwal Erythrosine;E 127; Edicol Supra Erythrosin AS; Edicol Supra Erythrosine A; Erythrosin;Erythrosin B; Erythrosin B sodium salt; Erythrosin BS; Erythrosine; Erythrosine307046; Erythrosine 36003; Erythrosine 37003; Erythrosine 3B; Erythrosine B-FO;Erythrosine BS; Erythrosine Bluish; Erythrosine Extra; Erythrosine Extra Conc.A Export; Erythrosine Extra Pure A; Erythrosine I; Erythrosine K-FO;Erythrosine TB; Erythrosine TB Extra; Erythrosine extra bluish; EurocertErythrosine 311807; FD & C Red No. 3-307020; FD and C Red 3; FD and C RedNo. 3; FD&C Red No. 3; FD&C Red No. 3-37003; FDC Red 3; FDC Red 3 dye;Food Color Red 3; Food Dye Red 3; Food Red 14; Food Red 3; Food Red No. 3;Hexacert Red No. 3; Hexacol Erythrosine BS; Japan Food Red No. 3; Japan Red 3;Japan Red No. 3; Maple Erythrosine; Necol Erythrosine; Neelicol Erythrosine;New Pink Bluish Geigy; Red 1799; Red 3; Red No. 3; S 887; Simacid Pink 24107;Synerid; Tetraiodofluorescein sodium salt; Usacert FD & C Red No. 3-310116;Usacert Red No. 3; Water Pink 176575