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Sigma-Aldrich

Bengalrosa Natriumsalz

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

Synonym(e):

4,5,6,7-Tetrachlor-2′,4′,5′,7′-tetraiodfluoreszein Dinatriumsalz, Bengalrosa Natriumsalz, Rose Bengal, Säurerot 94

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About This Item

Empirische Formel (Hill-System):
C20H2Cl4I4Na2O5
CAS-Nummer:
632-69-9
Molekulargewicht:
1017.64
Farbindexnummer:
45440
Beilstein:
3645857
EG-Nummer:
211-183-3
MDL-Nummer:
MFCD00005043
UNSPSC-Code:
12171500
PubChem Substanz-ID:
24851870
NACRES:
NA.47

Qualität

certified by the Biological Stain Commission

Form

powder

Zusammensetzung

Dye content, ≥80%

Farbe

dark violet

Löslichkeit

H2O: 1 mg/mL

λmax

548 nm

ε (Extinktionskoeffizient)

≥90000 at 546-550 nm at 0.008 g/L

Anwendung(en)

diagnostic assay manufacturing
hematology
histology

Lagertemp.

room temp

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

InChIKey

UWBXIFCTIZXXLS-UHFFFAOYSA-L

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Allgemeine Beschreibung

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

Anwendung

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



Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Analysenzertifikate (COA)

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