Biotin-PEO4-maleimide is a water soluble biotin derivative that can be readily coupled to thiols.
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CF® Dye & Biotin SE Protein Labeling Kits
This kit contains everything you need to label antibodies or other proteins with a fluorescent CF® dye succinimidyl ester (CF® dye SE) or biotin succinimidyl ester (biotin SE). Each kit contains reagents for three labeling reactions of up to 1 mg protein per reaction.
Streptavidin conjugates are prepared from high quality streptavidin biotin binding protein and Biotium's signature bright and photostable fluorescent CF® dyes, and a selection of other labels.
ViaFluor® SE Cell Proliferation Kits
CF® Dye Maleimides are thiol-reactive fluorescent dyes. Maleimides are commonly used to label proteins on free thiol groups.
Anhydrous DMSO (dimethyl sulfoxide; methyl sulfoxide) is recommended for preparing stock solutions of AM ester dyes, reactive dyes and other related moisture-sensitive products.