Dextran is labeled with rhodamine, Ex/Em wavelength 552/575 nm. The rhodamine used in all of polysaccharide products is 5/6-carboxy-tetramethyl-rhodamine, (5/6-TAMRA). Purity: >95% powder. Degree of substitution: 1 mol % substitution and at least one dye molecule per polymer. Dextran labeled with other types of rhodamine dyes such as Texas Red, Sulforhodamine 101 may be offered through our custom synthesis.
Dextran, CAS# 9004-54-0
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