What is the equivalent to Texas Red dye?
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Equivalent to Texas Red Dye
Texas Red, with an excitation maximum (Ex max) of 596 nm and an emission maximum (Em max) of 615 nm, is a popular fluorescent dye used in various biological and chemical applications for labeling and detection purposes. An equivalent to Texas Red dye would have similar spectral properties, particularly in terms of its excitation and emission wavelengths.
One such equivalent is Sulforhodamine 101, which is chemically similar to Texas Red and offers comparable fluorescence properties. Both dyes belong to the sulfonyl chloride family, making Sulforhodamine 101 a suitable alternative for applications requiring the Texas Red dye.
Key Features of Sulforhodamine 101:
- Excitation Maximum: Approximately 590 nm
- Emission Maximum: Approximately 605 nm
- High fluorescence quantum yield
- Stable under physiological conditions
Other dyes with similar excitation and emission spectra can also serve as alternatives, depending on the specific requirements of the application. It's important to consider factors such as the dye's compatibility with the detection system, its photostability, and how its spectral properties match with those of Texas Red.