All Photos(1)



Biotin Protein Labeling Kit

sufficient for 5 labeling reactions, kit of 1 (5 components), suitable for immunoblotting, suitable for ELISA

Biotin, protein labeling


sufficient for 5 labeling reactions

Quality Level


kit of 1 (5 components)




ELISA: suitable
immunoblotting: suitable

storage temp.


General description

For labeling of proteins with biotin.
Free amino acids of the protein to be labeled react with D-biotinoyl-ε-aminocaproic acid-N-hydroxy-succinimide ester (biotin-7-NHS) by forming a stable amino bond. Non reacted biotin-7-NHS is separated on a Sephadex G-25 column.


Biotin protein labeling kit has been used to produce biotinylated denatured bovine serum albumin (d-BSA) for coating cadmium telluride (CdTe) quantum dot (QD) conjugates.
The kit is suitable for the labeling of proteins with biotin for immunochemistry, immunoblotting, and ELISA.


1 kit containing 5 components.


Function tested.

Preparation Note

Working solution: Preparation of the solutions
  • Blocking solution: Dissolve the contents of the bottle blocking reagent (green screw cap) in 300 ml double-distilled water.
  • PBS solution: Dissolve the contents of the bottle PBS (blue screw cap) in 1 I double-distilled water.
  • Biotin-7-NHS solution: The solution should be freshly prepared before labeling. Add to the contents of the reaction vial which includes biotin-7-NHS 250 μI DMSO and vortex the solution several times. The resulting concentration of the biotin-7-NHS solution is 20 mg/ml. For the labeling mix, the volume of the biotin-7-NHS solution should not exceed 5% of the total reaction volume (e.g., add maximal 50 μl biotin-7-NHS solution to 1 ml protein solution).

Other Notes

For life science research only. Not for use in diagnostic procedures.

Kit Components Only

Product No.

  • Blocking Reagent (green screw cap)

  • Phosphate Buffered Saline (PBS) (blue screw cap)

  • D-Biotinoyl-ε-aminocaproic acid-N-hydroxysuccinimide ester (Biotin-7-NHS)

  • Dimethylsulfoxide (DMSO) (red screw cap)

  • Sephadex G-25 Columns

Storage Class Code

11 - Combustible Solids



Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Product Information Sheet

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service