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Substance Name: Erythrosine sodium (close form) [USAN]
RN: 16423-68-0
UNII: 8TL7LH93FM
InChIKey: RAGZEDHHTPQLAI-UHFFFAOYSA-L

Note

  • A tetraiodofluorescein used as a red coloring in some foods (cherries, fish), as a disclosure of DENTAL PLAQUE, and as a stain of some cell types. It has structural similarity to THYROXINE.

Molecular Formulas

  • C20-H6-I4-O5.2Na
  • C20-H8-I4-O5.2Na

Molecular Weight

  • 879.8424
 

Classification Codes

  • Coloring Agents
  • Fluorescent Dyes
  • Indicators and Reagents
  • Luminescent Agents
  • Mutation Data
  • Reproductive Effect
  • Tumor Data
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Names and Synonyms

Name of Substance

  • 3',6'-Dihydroxy-2',4',5',7'-tetraiodospiro(isobenzofuran-1(3H),9'- -(9H)xanthen)-3-one, disodium salt
  • Acid Red 51
  • CI 45430
  • Erythrosine
  • Erythrosine sodium (close form) [USAN]
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-2',4',5',7'-tetraiodo-, disodium salt

MeSH Heading

  • Erythrosine

Synonyms

  • 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
  • AI3-09094
  • Aizen erythrosine
  • Aizen Food Red 3
  • C.I. 45430
  • C.I. Acid Red 51
  • C.I. Food Red 14
  • Calcocid erythrosine N
  • Canacert erythrosine BS
  • Caswell No. 425AB
  • CCRIS 892
  • Cerven kysela 51
  • Cerven kysela 51 [Czech]
  • Cerven potravinarska 14
  • 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
  • EINECS 240-474-8
  • EPA Pesticide Chemical Code 120901
  • 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 bluish
  • Erythrosine bluish (biological stain)
  • Erythrosine BS
  • Erythrosine Extra
  • Erythrosine Extra Bluish
  • Erythrosine Extra Conc. A Export
  • Erythrosine Extra Pure A
  • Erythrosine I
  • Erythrosine K-FO (biological stain)
  • Erythrosine Lake
  • Erythrosine sodium
  • Erythrosine sodium (close form)
  • Erythrosine TB
  • Erythrosine TB Extra
  • 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
  • HSDB 7974
  • 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
  • UNII-8TL7LH93FM
  • Usacert Red No. 3

Systematic Names

  • C.I. Acid Red 51
  • Disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxoxanthen-9-yl)benzoate
  • Fluorescein, 2',4',5',7'-tetraiodo-, disodium salt
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-2',4',5',7'-tetraiodo-, disodium salt
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-2',4',5',7'-tetraiodo-, sodium salt (1:2)

Superlist Names

  • 2',4',5',7'-Tetraiodofluorescein, disodium salt
  • FD&C Red No. 3
  • Fluorescein, 2',4',5',7'-tetraiodo-, disodium salt

Registry Numbers

CAS Registry Number

  • 16423-68-0

FDA UNII

  • 8TL7LH93FM

Other Registry Numbers

  • 111634-12-9
  • 1342-20-7
  • 1342-21-8
  • 1342-28-5
  • 145361-15-5
  • 16904-63-5
  • 198832-03-0
  • 27540-70-1
  • 658700-90-4
  • 72027-96-4

Related Registry Number

  • 15905-32-5 (parent cpd)

System Generated Number

  • 0016423680

Molecular Formulas

Molecular Formulas

  • C20-H6-I4-O5.2Na
  • C20-H8-I4-O5.2Na

Molecular Formula Fragments

  • C20-H6-I4-O5
  • C20-H8-I4-O5
  • COMPONENT
  • Na

Structure Descriptors

InChI

1S/C20H8I4O5.2Na/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;;/h1-6,25-26H;;/q;2*+1/p-2

InChIKey

RAGZEDHHTPQLAI-UHFFFAOYSA-L

Smiles

C12(c3c(Oc4c1cc(c(c4I)[O-])I)c(c(c(c3)I)[O-])I)c1c(cccc1)C(=O)O2.[Na+].[Na+]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
gerbil LD50 oral 1930mg/kg (1930mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Scientia Pharmaceutica. Vol. 47, Pg. 39, 1979.
mouse LD50 intravenous 370mg/kg (370mg/kg)   Acta Poloniae Pharmaceutica. For English translation, see APPFAR. Vol. 9, Pg. 127, 1952.
mouse LD50 oral 1264mg/kg (1264mg/kg)   Eastern Pharmacist. Vol. 24, Pg. 125, 1981.
rabbit LD50 intravenous 200mg/kg (200mg/kg)   FAO Nutrition Meetings Report Series. Vol. 38B, Pg. 50, 1966.
rat LD50 intraperitoneal 300mg/kg (300mg/kg)   FAO Nutrition Meetings Report Series. Vol. 38B, Pg. 50, 1966.
rat LD50 intravenous 200mg/kg (200mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Scientia Pharmaceutica. Vol. 47, Pg. 39, 1979.
rat LD50 oral 1840mg/kg (1840mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Scientia Pharmaceutica. Vol. 47, Pg. 39, 1979.
rat LD50 unreported 1895mg/kg (1895mg/kg)   Nara Igaku Zasshi. Journal of the Nara Medical Association. Vol. 30, Pg. 179, 1979.

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) -0.290 (none)   EST
Atmospheric OH Rate Constant 2.95E-11 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.