Biotin-PEG45-fluorescein

Cat. No. B-P45F-1 Specification Unit Size 5 mg Price $385.00 Qty Add to Cart

is transferred to the biolinylated molecules , thus reducing aggregation of labeled proteins in solution. The PEG spacer arm also gives the biotin a long and flexible structure to minimize steric hindrance for binding to streptavidin or avdins.

Product Features:

• Biotinylation– label molecules and surfaces for assay or affinity purification methods involving avidin or streptavidin probes and resins
• Cell assays–Fluorescein can be easily traced with its green fluorescent signal in FITC channel.
• Water soluble-Biotin PEG fluorescein is soluble in common aqueous buffer and can be used directly in aqueous solution without need toxic organic solvents.

Specifications:

• Appearance (color): Orange or yellow;
• Appearance (form): Semi-solid to solid depends on MW;
• Solubility: Soluble in DMSO, DMF or water (Pegylated);

Storage Conditions:

• Store at -20 ⁰C. Desiccate. Protect from light.