11. This is one of the advantages of conjugating with Texas Red vs . using a rhodamine -isothiocyanate for conjugation. 12. It forms the core structure for various chemicals, most notably fluorone dyes, including fluorescein, erythrosine and rhodamine . 13. Alternatively, the antibody can also be tagged to a fluorophore, such as fluorescein or rhodamine ( see immunofluorescence ). 14. Rhodamine 6G chloride is a bronze / red powder with the chemical formula C 27 H 29 ClN 2 O 3.15. This use relies on the fact that rhodamine 123 accumulates in membranes in a manner which is dependent on membrane polarization. 16. "' Rhodamine 6G "'is a highly fluorescence microscopy, flow cytometry, fluorescence correlation spectroscopy and ELISA. 17. The absorption of Rhodamine 123 peaks around 505 nm and luminescence is tunable around 560 nm when used as a laser dye. 18. As an example, raw FCS data and its autocorrelation for freely diffusing Rhodamine 6G are shown in the figure to the right. 19. Rhodamine B ( BV10 ) is mixed with Quinacridone Magenta ( PR122 ) to make the bright pink watercolor known as Opera Rose.20. Auramine O can be used together with Rhodamine B as the Truant auramine-rhodamine stain for " Mycobacterium tuberculosis ".