Professional Supplier of Nano-Targeted Drug Scientific Research Products

Biotinylation Reagents

Biotin-PEG3-Maleimide | CAS 1431618-70-0

Catalog: TASK-36-1000144   CAS NO.: 1431618-70-0
  • 250mg
  • 1g


in stock
Buy Now
Delivery Fill in your shipping address to check the estimated shipping fee of your order

Select Shipping Address

$0.00 delivery Normal Delivery(7Days) Details Cyprum itidem insulam procul a continenti

$0.00 delivery Express Delivery Details Cyprum itidem insulam procul a continenti

  • High Quality Products
  • Fast and Safe Delivery


Biotin-PEG3-Mal (Biotin-PEG3-Maleimide) can be used to label proteins and peptides that contain exposed cysteine residues. By reacting with the -SH group of cysteine, the maleimide moiety forms a covalent bond, thereby attaching biotin to the protein or peptide. This labeled protein can then be used in various assays such as Western blotting, ELISA, or immunoprecipitation where detection or purification via streptavidin/biotin interaction is desired. Biotin is a vitamin (Vitamin B7) that is widely used as a molecular tag due to its high affinity for streptavidin and avidin proteins. This makes biotin a useful tool in molecular biology and biochemistry for labeling and detection purposes. PEG is often used to enhance solubility, reduce aggregation, and improve bioavailability of biomolecules. Maleimide is a reactive group that selectively reacts with sulfhydryl groups (-SH) of cysteine residues in proteins and peptides, forming a stable thioether bond. This makes maleimide useful for site-specific protein labeling and conjugation.


CAS No.1431618-70-0
Molecular Weight569.7
Ship Within1 week
Storage Temp.-20℃
Shipping4-25℃ for up to 3 weeks
Welcome to Taskcm

This email already exists.

Username already exists.

Please confirm the password is the same.