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Substance Name: D & C Red no. 28
RN: 18472-87-2
UNII: 767IP0Y5NH
InChIKey: OOYIOIOOWUGAHD-UHFFFAOYSA-L

Note

  • A red fluorescein dye used as a histologic stain. It may be cytotoxic, mutagenic, and inhibit certain mitochondrial functions.

Molecular Formulas

  • C20-H2-Br4-Cl4-O5.2Na
  • C20-H4-Br4-Cl4-O5.2Na

Molecular Weight

  • 829.6388
 

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

  • 2',4',5',7'-Tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxyspiro(i- sobenzofuran-1(3H),9'-(9H)xanthen)-3-one, disodium salt
  • Acid Red 92
  • CI 45410
  • D & C Red no. 28
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxy-, disodium salt

MeSH Heading

  • Eosine I bluish

Synonyms

  • 11969 Red
  • 3427 Veri Pur Pink
  • Acid Red 92
  • Aizen Acid Phloxine PB
  • C.I. 45410
  • C.I. Acid Red 92
  • CCRIS 6807
  • Cyanosin
  • Cyanosin (acid dye)
  • Cyanosin B
  • Cyanosine
  • D and C Red No. 28
  • Daiwa Red 45
  • EINECS 242-355-6
  • Eosin Blue
  • Eosine Blue
  • Eosine bluish
  • Food Dye Red No. 104
  • Food Red 104
  • Food Red No. 104
  • Japan Red 104
  • Japan Red 104-1
  • Orient Water Pink 2
  • Phloxin B
  • Phloxine B
  • Phloxine P
  • Red 104
  • Red No. 104
  • Red No. 104-1
  • UNII-767IP0Y5NH
  • Water Pink 2

Systematic Names

  • 3,4,5,6-Tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid sodium
  • C.I. Acid Red 92
  • Fluorescein, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-, disodium salt
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxy-, disodium salt
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxy-, sodium salt (1:2)

Superlist Name

  • Phloxine B

Registry Numbers

CAS Registry Number

  • 18472-87-2

FDA UNII

  • 767IP0Y5NH

Other Registry Numbers

  • 12777-84-3
  • 157367-38-9
  • 198831-99-1
  • 37361-25-4
  • 51374-31-3
  • 840499-87-8

Related Registry Number

  • 13473-26-2 (parent)

System Generated Number

  • 0018472872

Molecular Formulas

Molecular Formulas

  • C20-H2-Br4-Cl4-O5.2Na
  • C20-H4-Br4-Cl4-O5.2Na

Molecular Formula Fragments

  • C20-H2-Br4-Cl4-O5
  • C20-H4-Br4-Cl4-O5
  • COMPONENT
  • Na

Structure Descriptors

InChI

1S/C20H4Br4Cl4O5.2Na/c21-5-1-3-17(9(23)15(5)29)32-18-4(2-6(22)16(30)10(18)24)20(3)8-7(19(31)33-20)11(25)13(27)14(28)12(8)26;;/h1-2,29-30H;;/q;2*+1/p-2

InChIKey

OOYIOIOOWUGAHD-UHFFFAOYSA-L

Smiles

c1c2c(c(c(c1Br)[O-])Br)Oc3c(cc(c(c3Br)[O-])Br)C24c5c(c(c(c(c5Cl)Cl)Cl)Cl)C(=O)O4.[Na+].[Na+]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 oral > 4600mg/kg (4600mg/kg)   Journal of Agricultural and Food Chemistry. Vol. 46, Pg. 1005, 1998.
mouse LD50 intravenous 310mg/kg (310mg/kg)   Toxicology and Applied Pharmacology. Vol. 44, Pg. 225, 1978.
mouse LD50 oral 310mg/kg (310mg/kg)   Journal of Agricultural and Food Chemistry. Vol. 46, Pg. 1005, 1998.
rat LD50 oral 8400mg/kg (8400mg/kg)   Journal of Agricultural and Food Chemistry. Vol. 46, Pg. 1005, 1998.