
Custom Peptide Synthesis | Long Peptides & Complex Modified Peptides
We can stably synthesize long peptides up to 200 amino acids, exceeding the industry standard limit of approximately 40. From milligram-scale research customization to kilogram-scale commercial production, our Beijing Changping self-built lab delivers standard custom orders in 2–3 weeks.
Company Profile
Beijing Polypeptide Biotechnology Co., Ltd. was founded in 2023, Month 6, located at the Changping Chemical University Science Park in Beijing. Our core team brings over 20 years of combined experience in the polypeptide industry. We serve pharmaceutical companies, biotech firms, and academic institutions worldwide, providing end-to-end one-stop services from R&D to clinical trials and commercialization.
We offer end-to-end capabilities—from milligram-scale research customization to kilogram-level commercial production—committed to being your trusted peptide partner.

Partners
Established long-term partnerships with numerous prestigious universities, research institutes, hospitals, and enterprises.
Hospital
University
Research Institutes
Enterprise
Peptide Data Overview
Based on261Structured data analysis of peptide components
Evidence Level Distribution
Six-Level Evidence System: S/A/B/C/D/F
Data Source: PeptiSmart Knowledge Base
Peptide Family Classification
Statistics by Function Type
Data Source: PeptiSmart Knowledge Base
Core Business Segments
End-to-end services from R&D customization to GMP commercial production
Custom Research Peptides
Full gradient capacity from milligrams to kilograms, supporting complex modifications and labeling.
Catalog Peptide Supply
Full-Range Catalog in Stock: Antimicrobial Peptides, Hormonal Peptides, Neuropeptides, and More
GMP Pharmaceutical Intermediates
Compliant with FDA/NMPA/EMA regulations for oncology and diabetes medications.
Non-natural amino acid synthesis
Small-molecule heterocycles, PEG, fluorescein, and other specialized building blocks
Quality and Compliance Advantages
Produced under cGMP standards
3000 sqm standardized cGMP new facility built in compliance with ICH Q7
End-to-End Inspection System
Advanced international testing equipment ensures stable and reliable product quality.
Master's and PhD Technical Team
Core team members have extensive backgrounds in biomedicine.
Serving 1,000+ customers worldwide
Trusted by thousands of global partners
Rapid Delivery Capability
Standard custom orders: 2-3 weeks; select research orders: as fast as 1 weeks.
40+ Finishing Process
N-terminal/C-terminal modifications, phosphorylation, fluorescent labeling, isotope labeling, and more

Customer Protection
Strict Confidentiality Policy
Sign an NDA to protect client intellectual property and trade secrets
Dedicated Project Management
Dedicated project manager provides end-to-end support to ensure smooth, efficient communication.
Global Partner Clients
Serving thousands of research institutions worldwide
Rapid Delivery Capability
Standard custom orders deliver in 2-3 weeks; research orders complete in as little as 1 weeks.
Get service fast
Select your service type, and we'll contact you as soon as possible.
Get Your Custom Plan
Our expert team provides end-to-end support from R&D to commercial production.
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