Rose Bengal

• Catalog No.: A17053
• CAS Number: 632-69-9
• M. F.: C20H2Cl4I4Na2O5
• M. W.: 1017.6363

SYNONYMS

• Title: 孟加拉玫瑰红
• 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)
• IUPAC Traditional name: disodium 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-bis(olate)
• Synonyms: Acid Red 94; C.I. 45440

DATABASE IDS

• CAS Number: 632-69-9
• EC Number: 211-183-3
• MDL Number: MFCD00151169
• Beilstein Number: 3645857
• Merck Index: 148262

PROPERTIES

• Melting Point: >300°C
• GHS Hazard statements: H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• GHS Precautionary statements: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• Risk Statements: 36/37/38
• RTECS: LM5920000
• Safety Statements: 26-37
• Storage Warning: Light Sensitive
• TSCA Listed: 是

REFERENCES

• Photosensitizer, widely used for the generation of singlet oxygen. For use of this species in the ene reaction with alkenes to give allylic hydroperoxides, readily reducible to allylic alcohols, see. e.g.: J. Org. Chem., 28, 3217 (1963).
• See also: Singlet dioxygen: Active Oxygen in Chemistry, C. S. Foote, Ed., Blackie A. & P., Glasgow (1995), p. 105; Reactions of singlet oxygen with alkenes: Org. React., 20, 133 (1973); Chem. Rev., 71, 395 (1971); 79, 359 (1979); Tetrahedron, 37, 1825 (1981); Singlet Oxygen, H. H. Wasserman and R. W. Murray, Eds., Academic Press, N.Y. (1979).
• Can be solubilized in dichloromethane, etc. by 18-crown-6, or Aliquat. 336, extending its applicability to aprotic systems: Synthesis, 783 (1975).