Custom Peptide Synthesis
Qyaobio custom peptide synthesis and peptide libraries are offered from 2 to 150 amino acids to include modifications of standard peptide structures,has been used in proteomics, antibody products, lead discovery in drug development, etc.
Precisely the custom peptides you need：
Fluorescent labels, multiple disulfides and stable isotopes are just some of our specialties. We offer a huge range of modifications, including N-terminal, C-terminal and backbone peptides:
Acetylation, formylation, acylation
Amidation
Biotinylation
Branched peptides
Chromogenic and fluorogenic carboxypeptidase substrates
Clickable peptides
Conjugation to polymers
Conjugation to small molecules (including imaging agents)
Cyclizations, head to tail and side chain (lactam bridge, thioether)
Dye labeled peptides
Hydrocarbon-stapled peptides
Incorporation of chelating moieties such as DOTA, DPTA
Incorporation of fluorophores or chromophores
Incorporation of D-enantiomers and unusual amino acids
Introduction of C-terminal alcohol and aldehyde moieties
Introduction of C-terminal ester and thioester groups
Labeling with stable isotopes
Labeling with Tide FluorTM and Tide QuencherTM
Ligations
Lipidation
Maleimido peptides
Methylation, alkylation
Multiple disulfide bond formation
Phosphorylation and sulfation
Retro-inverso peptides
Stabilizing modifications including PEGylation, N-methylated amino acids and reduced peptide bonds
Why Choose qyaobio chinapeptides ?
Custom Peptide Providers
QYAOBIO has the capability to synthesize peptides at different purity levels from crude to ≥95%. Various scales from mg to kg to satisfy any aliquoting requirements. In addition, express delivery is available for urgent projects. Higher purity levels require additional production time and cost. We recommend specific purity for different applications.
We are able to synthesize peptide of 150 amino acids and above, longer peptides are combined by recombinant peptide technology.
You can find “qyaobio” through the academic paper links below:
https://www.science.org/doi/10.1126/sciadv.adv4238
https://advanced.onlinelibrary.wiley.com/doi/10.1002/advs.202304648
https://star-protocols.cell.com/protocols/4114
https://www.sciencedirect.com/science/article/pii/S2590053625000023
https://pmc.ncbi.nlm.nih.gov/articles/PMC12292748/
https://www.sciencedirect.com/science/article/abs/pii/S0308814623021301
https://www.biorxiv.org/content/10.1101/2025.08.08.668835v1.full
https://www.mdpi.com/1424-8247/18/4/491
https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1012717
https://www.nature.com/articles/s41467-024-50312-1
https://www.thno.org/v15p0086.pdf
https://www.auctoresonline.org/article/design-and-development-of-novel-anticancer-peptide-encapsulated-liposomes-for-targeting-of-solid-tumours-in-vitro
https://iopscience.iop.org/article/10.1088/1758-5090/ada737
Additional Services
Peptide Synthesis Services
Customer Centricity
We strive to provide the all-round positive experience for our customers in worldwide.
Operational Excellence
QYAOBIO is the leading and successful manufacturer of peptides synthesis in China.
Innovation and Technology
We strive to provide the all-round positive experience for our customers in worldwide.
Expert Team
Our expert team provides reliable capability and hands-on oriented solution for any challenge projects.
Custom Peptide Libraries
Custom libraries are typically completed in 2-3 weeks. Typical delivery consists of lyophilized peptides in 96-well titer plates, peptide location table, and MS and HPLC data.
Custom peptide libraries from Qyaobio are provided in 96-well plates with approximately 2 μmol of lyophilized peptide in each well. Qyaobio can synthesize peptide libraries for drug discovery, high-throughput screening, and SAR studies, including alanine scans and truncation sets. Qyaobio utilizes optimized protocols and chemistries to ensure consistent purity, quantity, and quality library-to-library and within each peptide library.
Qyaobio can incorporate most standard peptide modifications within custom peptide libraries. Standard modifications that can be incorporated are unusual amino acids, D-amino acids, C-terminal amidation, N-terminal modification, and biotin, dye or fluorescence labeling on the N-terminal or lysine side chains.
Large Scale Custom Peptide Production
We can perform custom peptide synthesis in larger scales, from gram to multi-kilogram quantities. Qyaobio complies with the most stringent quality control specifications at a competitive price. Let our experienced chemists assist with your development and production needs. All requests are evaluated with strict confidentiality.
PUBLIC SERVICE
Synthetic peptide applications
Qyaobio has substantial and long-standing expertise in peptide synthesis. We provide the highest quality custom peptides, no matter how complex or unusual of peptide sequences.
Synthetic peptides are ideal for a wide variety of applications and research areas. These synthetic peptides play the critical role in MS-based protein discovery, characterization, and quantitative analysis, especially for proteins as early disease biomarkers.
In addition, synthetic peptides are also applied in clinical diagnosis and disease treatment. Including:
Grug & Gene Delivery
In advanced gene and drug delivery, cell-penerating peptides and self-assembling peptides are two critical bio-active components. Comparing to viral vectors, peptides are easier to synthesize with more accessible and widespread.
Peptide Drugs
Many peptide drugs are synthesized from chemical modification of natural molecules. These drugs are invaluable for multiple treatment of metabolic diseases.
Tissue Engineering
Peptides with cell adhesion and self-assembling provide new opportunity in tissue engineering. These peptides are useful bioactive molecules to support cellular growth and tissue regeneration.
Peptide Vaccines
Vaccine are the most successful strategies of modern medicine. Peptide vaccines are a cost-effective, safe and highly specific alternative for conventional vaccines.
Cosmetic Application
Cosmetic peptides have protective and regenerative properties, many personal care products harness the beneficial properties. Small cosmetic peptides can cross the skin carrier due to the easy diffusion. Peptides with antimicrobial in cream can prevent and treat skin conditions.
Request a Quote Today!
Supports phosphorylation (p-Ser/p-Thr/p-Tyr), fluorescence labeling (FITC/Cy3) and other modifications, providing small batch (mg level) rapid customization to meet experimental needs such as Western Blot and Co IP.
✅ Provide suggestions for optimizing amino acid sequences
✅ Cutting-Edge Synthesis: FMOC/BOC solid-phase technology for complex modifications (disulfide bridges, phosphorylation, etc.);
✅ End-to-End Solutions: From sequence design to purity validation, supporting preclinical to commercial stages;
✅ Complete sequence confirmation within 2 days and deliver within 7 days
Call Us
+86(021)-50795728
+86(027)-60707970