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CAS No 632-68-8 , dipotassium

  • Name: dipotassium
  • Synonyms: dipotassium 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodo-3-oxo-3h-spiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate; 4159-77-7 (Parent);4,5,6,7-tetrachloro-2',4',5',
    7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate;dipotassium;
  • CAS Registry Number:
  • Safety Statements: 22-24/25
  • EINECS: 211-182-8
  • Molecular Weight: 1049.85336
  • InchiKey: VQHHOXOLUXRQFQ-UHFFFAOYSA-L
  • InChI: 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
  • Molecular Formula: C20H2Cl4I4K2O5
  • Molecular Structure:CAS No:632-68-8 dipotassium

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632-68-8 BENGAL RED B

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632-68-8 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)

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632-68-8 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)

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632-68-8 ROSE BENGAL B

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References of dipotassium
Title: Rose Bengal
CAS Registry Number: 632-68-8
CAS Name: 4,5,6,7-Tetrachloro-3￠,6￠-dihydroxy-2￠,4￠,5￠,7￠-tetraiodospiro[isobenzofuran-1(3H),9￠-[9H]xanthen]-3-one dipotassium salt
Synonyms: 4,5,6,7-tetrachloro-2￠,4￠,5￠,7￠-tetraiodofluorescein dipotassium salt; C.I. Acid Red 94; Rose Bengale B; C.I. 45440
Molecular Formula: C20H2Cl4I4K2O5
Molecular Weight: 1049.85
Percent Composition: C 22.88%, H 0.19%, Cl 13.51%, I 48.35%, K 7.45%, O 7.62%
Literature References: Discovered by Gnehm 1882; tetraiodinate of 4,5,6,7-tetrachlorofluorescein (from resorcinol and tetrachlorophthalic anhydride) converted to potassium salt: Colour Index vol. 4 (3rd ed., 1971) 4428. Labeling with 131I: Liebster, Andrysek, Nature 184, 913 (1959). See also: H. J. Conn's Biological Stains, R. D. Lillie, Ed., (Williams & Wilkins, Baltimore, 9th ed., 1977) p 350. Diagnostic use in hepatic function: K. S. Nijran, D. C. Barber, Phys. Med. Biol. 31, 563 (1986).
Properties: Bright bluish pink. Soluble in water (bluish red without fluorescence); brown soln in concd H2SO4, on dilution gives flesh pink ppt.
 
Derivative Type: Disodium salt
CAS Registry Number: 632-69-9
Synonyms: Rose Bengal Extra
Molecular Formula: C20H2Cl4I4Na2O5
Molecular Weight: 1017.64
Percent Composition: C 23.61%, H 0.20%, Cl 13.94%, I 49.88%, Na 4.52%, O 7.86%
 
Derivative Type: 131I-Labeled disodium salt
CAS Registry Number: 50291-21-9
Synonyms: Sodium rose bengal I 131; rose bengal sodium I 131
Trademarks: Robenogatope I-131 (BMS)
 
NOTE: C.I. Acid Red 94 and C.I. 45440 also used for disodium salt.
Use: As a dye, biological stain; in coloring straw, wood chips, and inks; for coloring edible products and cosmetics.
Therap-Cat: Diagnostic aid (corneal trauma indicator). Sodium Rose Bengal I 131 as diagnostic aid (hepatic function).
Keywords: Diagnostic Aid.