sulforhodamine B

sul·fo·rho·da·mine B

(sŭl'fō-rō'dă-mēn), [C.I. 45100]

A xanthene dye derivative; a fluorochrome used for tagging proteins by a sulfamido condensation; employed in immunofluorescence alone or in combination with fluorescein isothiocyanate for the simultaneous microscopic detection of two antigens in contrasting red and green colors.

Synonym(s): lissamine rhodamine B 200

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