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Rose bengal (4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein) is a stain. Rose bengal belongs to the class of organic compounds called xanthenes . [ 1 ] Its sodium salt is commonly used in eye drops to stain damaged conjunctival and corneal cells and thereby identify damage to the eye .
On inspection with a slit lamp, tiny lumps can be found on the cornea of the eye. These lumps can be more easily seen after applying fluorescein or rose Bengal dye eye-drops. The lumps appear to be randomly positioned on the cornea and they may appear and disappear over a period of time (with or without treatment).
Rose bengal: Acid red 94 45440 fluorone 632-68-8: Rottlerin: Kamala Natural yellow 25 75310 natural 82-08-6: Ruthenium red: Ammoniated ruthenium oxychloride 77800 inorganic 11103-72-3: Rutin: Rutoside Sophorin 75730 natural 153-18-4: Saffron: Crocin Natural yellow 6 Natural yellow 19 Natural red 1 75100 natural 89382-88-7: Safranin O Basic red ...
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Rose bengal, tetrachloro-tetraiodo-fluorescein used as stain in histology; DyLight Fluor, a product line of fluorescent dyes; Fluorescein diacetate hydrolysis, a biochemistry laboratory test; Other dyes: Rhodamine, family of derivatives of xanthene used as dyes, indicators and fluorescent tracers; Methylene blue, blue thiazine dye also used as ...
It is a component of Papanicolaou stains together with eosin Y and bismarck brown Y. [1] In pap smears, Light Green SF confers a blue staining for the cytoplasm of active cells such as columnar cells, parabasal squamous cells, and intermediate squamous cells. [3] It usually comes as a disodium salt. Its maximum absorption is at 630 (422) nm.
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Additionally, some rose colors are better suited for specific occasions than others. Consider pale pink roses for the best Mother's Day flowers , orange roses after major accomplishments or white ...