Rose Bengal 95% (dye content) ≥96% (by HPLC), Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY

Synonyms: Sodium 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodo-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate), Food Red No. 105, CI 45440, Acid red 94, Aniline Rose, Rose Bengal sodium

330000-1G 330000-5G
330000-1GEA 128 EUR
330000-1G 330000-5G
Rose Bengal 95% (dye content) ≥96% (by HPLC), Sigma-Aldrich®
Rose Bengal

Rose Bengal has been used to evaluate acrosome integrity. It has also been used to initiate photothrombotic occlusion in blood.

Formula: C₂₀H₂Cl₄I₄O₅Na₂
MW: 1017,63 g/mol
Storage Temperature: Ambient
MDL Number: MFCD00151169
CAS Number: 632-69-9
EINECS: 211-183-3

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Specification Test Results

Appearance (Colour) Red to Brown
Appearance (Form): Powder and/or Chunks Conforms
Infrared spectrum Conforms to Structure
Wave Length, c = 0.004 g/L H2O + 1 ml 1% Na2CO3 546 - 550 nm
Extinction Coefficient ≥32000
Wave Length 262 - 266 nm
Purity (HPLC) Approximately ≥95.0%

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