Biotin-Dextran-Fluorescein


Biotin-Dextran-Fluorescein

Bio-Dextran-FITC

Catalog:DEXC004

Unit Size:5 mg

INQUIRY Datasheet

Specifications
Common Use Dextran is labeled with both biotin and fluorescein, Ex/Em wavelength 494/518 nm. Purity: >95% lyophilized powder.
Structure Biotin-Dextran-Fluorescein
Molecular Weight 70 kDa
Functional Group Biotin
Fluorophores FITC
Degree of Substitution 1 mol % substitution for each dye and at least one biotin and one fluorescein molecule per polymer.
Excitation Wavelength 494 nm
Emission Wavelength 518 nm
Q & A

Q: What is the definition for Labeling Degree (%) of your fluorescently-labeled dextran products?

A: Labeling Degree (%) is determined by dividing the number of covalently conjugated fluorescent dye by the total number of monomeric units of a polysaccharide molecule chain. For instance, 1.0 MOL % labeling means that one of every one hundred monomeric units along the polysaccharide chain is fluorescently labeled.

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