Peptide modifications.

United Peptide provides a wide range of peptide modification services including but not limited to the followings:


Cyclic peptide
  • Mono Disulfide bridge
  • Double Disulfide bridge
  • Triple Disulfide bridge
  • Same Seq. Inter-Disulfide bridge
  • Different Inter-Disulfide bridge
  • Amide cyclic (end)
  • Amide cyclic (Side chain)

Get a FREE Quote

Get a FREE Quote today

  • info@UnitedPeptide.com
  • 1-800-549-9126
  • Request a Free Quote

Special Promotion

Special Discount

Summer Special
30% Discount.


Promotion Code: BEST30.

We Guarantee

We guarantee the quality of each and every peptide produced. All purified peptides will be delivered with the MS/HPLC reports.

Our Capabilities

- Length: 2 to 200mer
- Success Rate: > 99%
- Purity: from Crude to 98%
- Scale: from 1mg to 5,000mg