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Merck

198250

Sigma-Aldrich

Rose bengal

certified by the Biological Stain Commission, Dye content ≥80 %

Sinónimos:

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

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About This Item

Fórmula empírica (notación de Hill):
C20H2Cl4I4Na2O5
Número de CAS:
Peso molecular:
1017.64
Número de índice de color:
45440
Beilstein:
3645857
Número CE:
Número MDL:
Código UNSPSC:
12171500
ID de la sustancia en PubChem:
NACRES:
NA.47

grado

certified by the Biological Stain Commission

Nivel de calidad

Formulario

powder

composición

Dye content, ≥80%

color

dark violet

solubilidad

H2O: 1 mg/mL

λmáx.

548 nm

ε (coeficiente de extinción)

≥90000 at 546-550 nm at 0.008 g/L

aplicaciones

diagnostic assay manufacturing
hematology
histology

temp. de almacenamiento

room temp

cadena SMILES

[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

Clave InChI

UWBXIFCTIZXXLS-UHFFFAOYSA-L

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Descripción general

Rose Bengal is the sodium salt of tetraiodotetrachlorouorescein, C20H2O5I4Cl4Na2. It is an anionic water-soluble xanthene dye.

Aplicación

Rose bengal has several microbilogical staining applications including:
  • Conn′s technique for bacteria in soil and Kreyberg′s stain for keratin and mucus
  • counterstaining hematoxylin
  • staining cellular inclusions, together with Bismark brown



Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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