Agent Name

Erythrosine sodium

Alternative Name

Erythrosin B

CAS Number




Major Category



Erythrosin B; 1427 Red; 1671 Red; 2',4',5',7'-Tetraiodofluoroescein disodium salt; 2,4,5,7-Tetraiodofluorescein disodium salt; 3',6-Dihydroxy-2',4',5',7'-tetraiodospiro(isobenzofuran-1(3H),9'(9H)xanthen)-one disodium salt; 9-(o-Carboxyphenyl)-6-hydroxy-2,4,5,7-tetraiodo-3H-xanthene-3-one disodium salt monohydrate; Acid Red 51; Aizen Food Red 3; Aizen erythrosine; C.I. 45430; C.I. Acid Red 51; C.I. Food Red 14; Calcocid erythrosine N; Canacert erythrosine BS; Cerven kysela 51 [Czech]; Cerven potravinarska 14 [Czech]; Cilefa Pink B; D&C Red No. 3; Disodium 2',4',5',7'-tetraiodofluorescein; Disodium 3',6'-dihydroxy-2',4',5',7'-tetraiodospiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one; Disodium 9-(O-carboxyphenyl)-6-hydroxy-2,4,5,7-tetraiodo-3H-xanthen-3-one monohydrate; Dolkwal erythrosine; Dye FD and C Red No. 3; E 127; Edicol Supra Erythrosin AS; Edicol Supra Erythrosine A; Erythrosin; Erythrosin B; Erythrosin B sodium salt; Erythrosin BS; Erythrosine; Erythrosine (indicator); Erythrosine 3B; Erythrosine B; Erythrosine B (biological stain); Erythrosine B-FO (biological stain); Erythrosine BS; Erythrosine Bluish; Erythrosine Extra; Erythrosine Extra Bluish; Erythrosine Extra Conc. A Export; Erythrosine Extra Pure A; Erythrosine I; Erythrosine K-FO (biological stain); Erythrosine Lake; Erythrosine TB; Erythrosine TB Extra; Erythrosine bluish; Erythrosine bluish (biological stain); Erythrosine sodium; FD and C Red 3; FD and C Red No. 3; FD&C Red No. 3; FDC Red 3; FDC Red 3 dye; Fluorescein, 2',4',5',7'-tetraiodo-, disodium salt; 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; LB-Rot 1; Maple erythrosine; New Pink Bluish Geigy; Red Dye No. 3; Schultz No. 887; Sodium erythrosin; Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-2',4',5',7'-tetraiodo-, disodium salt; Tetraiodofluorescein sodium salt; Usacert Red No. 3; Disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxoxanthen-9-yl)benzoate; [ChemIDplus]


Di- and Triaryl Dyes


Brown solid that forms red solution; [Hawley] Soluble in water; [MSDSonline]


Used as a stain for microscopy and dental plaque; Also used as a dye food and drugs; ChemIDplus]


Toxic by ingestion; LD50 (rat) = 1840 mg/kg; Avoid breathing dust; A skin, eye, and respiratory tract irritant; [MSDSonline]

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