Texas Red maleimide

Texas Red maleimide,Sulforhodamine 101 maleimide from ruixi.Texas Red, also known as sulfonated rhodamine 101, is a traditional but still commonly used red fluorescent dye. The main excitation peak of Texas Red dye is 589 nm, and it can also be excited by krypton laser at about 567 nm. The excitation efficiency is slightly lower. The fluorescence emission peak of Dezhou red is about 615 nm, which belongs to the visible area of human flesh eye and is more sensitive. Dezhou red molecule has sulfonate ion, good water solubility and bright fluorescence. It can be used to develop antigens with very low expression. Maleimide is a group commonly used in biomarker reaction. It can generate stable thioether structure through affinity addition reaction with sulfhydryl (- SH), so as to realize labeling. Although amino groups (such as lysine arginine side chain) also have affinity, maleimide selectively labels sulfhydryl groups in neutral or slightly acidic buffer (reaction speed > 1000 times faster than amino groups). The labeling reaction has the advantages of rapid reaction, high selectivity and good yield. In addition, sulfhydryl is a functional group widely existing in biomolecules, such as serine and disulfide bond in proteins. Therefore, maleimide / thiol labeling has become the most commonly used biological ligation reaction second only to NHS / amino labeling.

msds of Texas Red maleimide