Thermo Scientific Chemicals Rose Bengal

Description

CAS: 632-69-9 | C20H4Cl4I4Na2O5 | 1019.644 g/mol

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.

Notes
Incompatible with strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 632-69-9
• Molecular Formula: C20H4Cl4I4Na2O5
• Molecular Weight (g/mol): 1019.644
• MDL Number: MFCD00151169
• InChI Key: DPBQSRZQYAYDGY-UHFFFAOYSA-N
• Synonym: rose bengal disodium salt, r105 sodium, rose bengal sodium, rose-bengal 131 i natrium, food red no. 105, sodium salt, food red color no. 105, sodium salt, rosa bengala sodica 131 i inn-spanish, rose bengale 131 i sodique inn-french, sel disodique de rose bengale iodee 131 i, roseum bengalense 131 i natricum inn-latin
• PubChem CID: 87244310
• IUPAC Name: sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one
• SMILES: C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na]

• Melting Point: >300°C
• Quantity: 500 g
• Beilstein: 3645857
• Sensitivity: Light sensitive
• Merck Index: 14,8262
• Solubility Information: Soluble in water.
• Formula Weight: 1017.65
• Chemical Name or Material: Rose Bengal

Safety and Handling

Hazard Category	Warning
Hazard Statement	GHS H Statement H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	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.
EINECSNumber	211-183-3
RTECSNumber	LM5920000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only