Description
certified by the Biological Stain Commission, Dye content ≥80 %
Synonyms: 4,5,6,7-Tetrachloro-2′,4′,5′,7′-tetraiodofluorescein disodium salt, Acid Red 94, Bengal Rose B sodium salt, Rose Bengal sodium salt
Empirical Formula (Hill Notation): C20H2Cl4I4Na2O5
General description
Rose Bengal is the sodium salt of tetraiodotetrachlorouorescein, C20H2O5I4Cl4Na2. It is an anionic water-soluble xanthene dye.
Application
Rose bengal has several microbilogical staining applications including:
- Conn′s technique for bacteria in soil and Kreyberg′s stain for keratin and mucus
- counterstaining hematoxylin
- staining cellular inclusions, together with Bismark brown
PROPERTIES
grade
certified by the Biological Stain Commission
form
powder
composition
Dye content, ≥80%
solubility
H2O: 1 mg/mL
λmax
548 nm
ε (extinction coefficient)
≥90000 at 546-550 nm at 0.008 g/L
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
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