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Substance Name: Rose bengal
RN: 632-68-8
UNII: 1ZPG1ELY14
InChIKey: VQHHOXOLUXRQFQ-UHFFFAOYSA-L

Notes

  • A bright bluish pink compound that has been used as a dye, biological stain, and diagnostic aid
  • A bright bluish pink compound that has been used as a dye, biological stain, and diagnostic aid.

Molecular Formula

  • C20-H4-Cl4-I4-O5.2K

Molecular Weight

  • 1049.84
 

Classification Codes

  • Coloring Agents
  • Fluorescent Dyes
  • Indicators and Reagents
  • Luminescent Agents
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Names and Synonyms

Name of Substance

  • Rose bengal

MeSH Heading

  • Rose Bengal

Synonyms

  • Acid Red 94
  • Aizen Food Red 105
  • Aizen Rose Bengal
  • Aizen Rose Bengal B
  • Bengal Pink B
  • Bengal Red B
  • Bengal Rose B
  • C.I. 45440
  • C.I. Acid Red 94
  • EINECS 211-182-8
  • Food Red 105
  • Food red dye 105
  • Food Red No. 105
  • Red No. 105
  • Red No. 232
  • Simacid Rose Bengal
  • Tetrachlorotetraiodofluorescein dipotassium salt
  • Triacid Bengal Rose B
  • UNII-1ZPG1ELY14

Systematic Names

  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-, dipotassium salt
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-, potassium salt (1:2)

Registry Numbers

CAS Registry Number

  • 632-68-8

FDA UNII

  • 1ZPG1ELY14

Other Registry Numbers

  • 12777-85-4
  • 198831-90-2

Related Registry Number

  • 4159-77-7 (Parent)

System Generated Number

  • 0000632688

Molecular Formulas

Molecular Formula

  • C20-H4-Cl4-I4-O5.2K

Molecular Formula Fragments

  • C20-H4-Cl4-I4-O5
  • COMPONENT
  • K

Structure Descriptors

InChI

1S/C20H4Cl4I4O5.2K/c21-9-7-8(10(22)12(24)11(9)23)20(33-19(7)31)3-1-5(25)15(29)13(27)17(3)32-18-4(20)2-6(26)16(30)14(18)28;;/h1-2,29-30H;;/q;2*+1/p-2

InChIKey

VQHHOXOLUXRQFQ-UHFFFAOYSA-L

Smiles

C12(c3c(Oc4c1cc(I)c(c4I)[O-])c(c([O-])c(c3)I)I)c1c(c(c(Cl)c(c1Cl)Cl)Cl)C(=O)O2.[K+].[K+]

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) 8.020 (none)   EST
Atmospheric OH Rate Constant 3.09E-11 cm3/molecule-sec 25 EST

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