Rose Bengal

Cat. No. 5168

Rose Bengal C20H2Cl4I4Na2O5 [632-69-9]

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Chemical Name: 4,5,6,7-Tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one disodium salt

Biological Activity

Potent VGlut and vesicular monoamine transporter (VMAT) inhibitor (Ki values are 19 and 64 nM, respectively). Inhibits ATP dependent vesicular glutamate uptake (IC50 = 37 nM) and diminishes the amount of exocytotically released glutamate in synaptosomes. Decreases synaptic transmission in the dentate gyrus. Also stains exposed epithelium in the eye. Cell permeable.

Technical Data

Soluble to 100 mM in water and to 50 mM in DMSO
>98 %
Store at RT

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet

Neale et al (2013) Modulation of hippocampal synaptic transmission by the kynurenine pathway member xanthurenic acid and other VGLUT inhibitors. Neuropsychopharmacology. Neuropsychopharmacology 38 1060. PMID: 23303071.

Pietrancosta et al (2010) Rose Bengal analogs and vesicular glutamate transporters (VGLUTs). Bioorg.Med.Chem. 18 6922. PMID: 20708942.

Ogita et al (2001) Inhibition of vesicular glutamate storage and exocytotic release by Rose Bengal. J Neurochem. 77 34. PMID: 11279259.

Feenstra et al (1992) What is actually stained by rose bengal? Arch.Ophthalmol. 110 984. PMID: 1637285.

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