Custom Peptides

Through our commitment to exceeding industry standards and client expectations, we fully support our prodcuts and each client's investigative efforts with our experience and knowledge. This collaboration is to make a positive impact within the scientific discovery community — and to human life. Our end goal is to make a difference through our scientific contributions.

Peptide Synthesis Promo: As Low as $2.00 per Amino Acid

Custom Peptide Quote Guidelines
When requesting a custom peptide quote, please provide amino acid sequence and modifications, quantity (mg), and purity(Desalted, >75%, >80%, >90%, >95%, >98%).
N-Terminal Peptide Modifications
  • Acetylation (N-Terminal)
  • Formylation (N-Terminal)
  • Fatty acid (N-Terminal)
  • Benzoyl (Bz) (N-Terminal)
  • Palmytolyl (N-Terminal)
  • Benzyloxycarbonylation (CBZ) (N-Terminal)
  • Succinylation (N-Terminal)
  • Myristic acid (N-Terminal)
  • Acryl (N-Terminal)
  • D(+)Glucose (N-Terminal)
  • Chenodeoxycholic acid (N-Terminal)
  • Tertbutoxycarbonyl (Boc) (N-Terminal)
  • 3-Mercaptopropyl (Mpa)
  • DNP (N-Terminal)
  • Rhodamine B (N-Terminal) (with Ahx link)
  • Propiolic Acid (N-Terminal)
  • Pentinoic Acid (N-Terminal)
  • Bromoacetyl (Br-Ac) (N-Terminal)
  • Pyroglutamyl (pGlu) (Pyr) (N-Terminal)
C-Terminal Custom Peptide Modifications
  • Amidation (C-Terminal)
  • Ethylamine (C-Terminal)
  • Methyl ester (C-Terminal)
  • Thioester (C-Terminal)
  • Acryl (C-Terminal)
  • AMC (C-Terminal)
  • pNA (p-Nitroanilide, C-Terminal)
  • NHS (OSu, C-Terminal)
Other Amino Acid Custom Peptide Modifications
  • Phosphorylation -Tyr,Ser, Thr (1st Site)
  • Phosphorylation -Tyr,Ser, Thr (2nd Site)
  • Phosphorylation -Tyr,Ser, Thr (3rd Site)
  • Lys(Me2)
  • Arg(Me2)
  • Lys(Ac), Cys(Ac)
  • Dinitrobenzoylation(Lys)
  • Ser(Octanoic acid)
  • Cys(Acm)
  • Cys(tBu)
  • Lys(Fmoc)
  • Met(O), Ser(Ac)
  • Tyr(Nitrated), Tyr(OEt), K(Acryl)
Fluorescence/Dye Custom Peptide Modifications
  • Biotin (N-Terminal, w or w/o Ahx)
  • Biotin (via side chain of Lys)
  • FITC/5-FAM (N-Terminal, w or w/o Ahx)
  • FITC/5-FAM (C-Terminal, via side chain of Lys)
  • Dansyl (N-Terminal, w or w/o Ahx)
  • TAMRA (N-Terminal)
  • TAMRA (C-Terminal, via side chain of Lys)
  • MCA (N-Terminal)
  • HYNIC (N-Terminal)
  • DTPA (N-Terminal)
Isotope Labeled Amino Acid
Quenched Fluorescent Peptide
  • Abz/Tyr(3-NO2)
Cyclic Custom Peptides
  • Disulfidebridge-1st
  • Disulfidebridge-2nd
  • Disulfidebridge-3rd
  • Amide cyclic (Side chain-end, head-tail)
MAP System
  • Asymmetric 4 branches
  • Asymmetric 8 branches
Special Amino Acids
  • D-Ala, D-Phe, D-Met, D-Pro, D-Leu, D-Val, Beta-Ala, pGlu, Hyp, D-Ile
  • D-Arg, D-Asp, D-Cys, D-Glu, D-Thr, D-Asn, D-Gln, D-Ser,D-His, D-Trp, D-Lys, D-Tyr, D-Orn, (D)1-Nal, (D)2-Pal, (D)4-Cl-Phe, Orn, Abu, Aib, Nva, Nle, Hse, Hcy, Mpa, Pen
  • N-Methyl amino acid (Ala,Phe,Leu,Ile,Val,Gly,Met)
  • Other amino acids
  • BSA (1-10mg)
  • KLH (1-10mg)
  • OVA (1-10mg)
Related Services
  • Amino Acid Analysis
  • Synthetic Peptide Content Analysis (nitrogen estimation)
  • TFA Salt Content Analysis
  • Aliquot, Free for up to 5 vials
For more information about our scientific innovation at Biopeptek, please contact us at or call (610) 643-4881/(800) 352-6169. We are looking forward to helping you with your custom peptide project.