[A17053] CAS 632-69-9 | Rose Bengal | Alfa
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Brand: Alfa Aesar
632-69-9 | C20H2Cl4I4Na2O5 | disodium 4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodo-3-oxospiro[2-benzofuran-1,9′-xanthene]-3′,6′-bis(olate)
Chemical Identifiers
CAS
632-69-9
Molecular Weight (g/mol)
1017.63
Synonym
disodium 4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodo-3-oxospiro[2-benzofuran-1,9′-xanthene]-3′,6′-bis(olate)
SMILES
[Na+].[Na+].[O-]C1=C(I)C=C2C(OC3=C(I)C([O-])=C(I)C=C3C22OC(=O)C3=C(Cl)C(Cl)=C(Cl)C(Cl)=C23)=C1I
InChI Key
KCQREHTWEUECQT-UHFFFAOYSA-L
Molecular Formula
C20H2Cl4I4Na2O5
IUPAC Name
disodium 4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodo-3-oxo-3H-spiro[2-benzofuran-1,9′-xanthene]-3′,6′-bis(olate)
Specifications
Solution Test
0.1 wt.% in water (+ 1ml 1% Na₂CO₃): Clear
lambda-max (UV-Vis)
540-550nm (in water)
Specific Absorbance (E 1%/1cm)
(at |l max) : ≥600
Appearance (Color)
Red to dark red to brown
Form
Powder
설명
Rose Bengal is a stain used in the eye drops to identify the eye damage. It finds application in the preparation of foraminifera for microscopic analysis, photosensitizing reactions and as a dye. In synthetic chemistry, it is utilized to convert triplet oxygen to singlet oxygen, which is used in [2+2] cycloadditions with alkenes. Its derivatives have important medical functions and used for the treatment of cancer. It acts as an alternative to phloxine B in Kreyberg’s stain for keratin and mucus. As a fluorescent probe, it is used for the determination of NAD binding sites of alcohol dehydrogenase.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Solubility
Soluble in water.
Soluble in water.
Notes
Incompatible with strong oxidizing agents.
Other References:
Merck Index:14,8262Beilstein:3645857
GHS Hazard and Precautionary Statements
Hazard Statements:Warning
GHS H StatementH315-H319-H335Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.
Precautionary Statements:GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk & Safety
TSCA:YesRTECS Number:LM5920000
경고:RUO – Research Use Only
CAS632-69-9FORMULAC20H2Cl4I4Na2O5EINECS211-183-3MDLMFCD00151169
| Pakage | 100g, 25g, 500g |
|---|---|
| brand | Alfa Aesar |
