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R4507 Sigma-Aldrich

Rose Bengal sodium salt

certified by the Biological Stain Commission

Synonym: 4,5,6,7-Tetrachloro-2′,4′,5′,7′-tetraiodofluorescein sodium salt, Acid Red 94, Bengal Rose B sodium salt

  • CAS Number 632-69-9

  • Empirical Formula (Hill Notation) C20H2Cl4I4Na2O5

  • Molecular Weight 1017.64

  •  Colour Index Number 45440

  •  Beilstein/REAXYS Number 3645857

  •  EC Number 211-183-3

  •  MDL number MFCD00005043

  •  PubChem Substance ID 24899371

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Properties

grade   certified by the Biological Stain Commission
composition   Dye content, ≥80%
SMILES string   [Na+].[Na+].[O-]C(=O)c1c(Cl)c(Cl)c(Cl)c(Cl)c1C2=C3C=C(I)C(=O)C(I)=C3Oc4c(I)c([O-])c(I)cc24
InChI   1S/C20H4Cl4I4O5.2Na/c21-10-8(9(20(31)32)11(22)13(24)12(10)23)7-3-1-5(25)16(29)14(27)18(3)33-19-4(7)2-6(26)17(30)15(19)28;;/h1-2,29H,(H,31,32);;/q;2*+1/p-2
InChI key   UWBXIFCTIZXXLS-UHFFFAOYSA-L

Description

Packaging

25 g in glass bottle

Suitability

Certified for use in Conn′s technique for bacteria in soil; as an alternative to phloxine B in Kreyberg′s stain for keratin and mucus.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
LM5920000

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

HPLC Analysis of Synthetic Food Dyes on Ascentis® Express C18

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Synthetic Food Dyes on Ascentis® Express C18
Keywords: Chromatography, High performance liquid chromatography

Peer-Reviewed Papers
15

References

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