APN Biotech
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APN Biotech
APN Biotech provides high-purity, monodispersed single molecular weight PEG reagents and specialty amino acids for ADCs, peptides, and advanced drug development. Trusted by researchers and pharmaceutical partners worldwide.
APN Biotech Co., Ltd. is a leading customer-focused biotech company located in Chengdu, Sichuan Province, China. We are dedicated to manufacturing and supplying high-purity PEG linkers, protected amino acids, peptide linkers, and specialty building blocks for scientific research and pharmaceutical development.
With over two decades of expertise in protected amino acids, our product portfolio covers more than 95% of polypeptide raw materials, especially high-arginine (HomoArg) protected amino acids, with exceptional purity and low single impurity levels.
In the rapidly evolving field of PEG linkers, we have successfully synthesized nearly 100 types of PEG linker compounds (n=2–10), produced hundreds of grams to kilograms of medium- and long-chain PEG linkers, and established a robust, scalable, and cost-effective production process.
Over 1000 high-purity biochemicals in stock. Specializing in PEG linkers, protected amino acids, peptide intermediates, and GLP-1 analogue side chains for advanced research and drug development.
CAS: 166108-71-0
Fmoc-protected aminoethoxyethoxyacetic acid, ideal for ADC linker synthesis and peptide modification.
CAS: 82911-69-1
Fmoc-L-2,4-diaminobutyric acid N'-succinimidyl ester, used in peptide coupling and labeling.
n=2 to n=10
Monodispersed, high-purity PEG spacers with various end groups (COOH, NH2, Fmoc, Boc, etc.).
CAS: 144494-62-2
Boc-protected AEEA, a key building block for peptide and conjugate synthesis.
CAS: 1313054-60-2
High-purity protected homoarginine for complex peptide synthesis.
n=9
Amine-terminated nona-ethylene glycol with carboxylic acid, used in bioconjugation.
CAS: 45120-30-7
Fmoc-Glutamic acid tert-butyl ester, essential for peptide side-chain protection.
Chloro-PEG3-acetic acid
Reactive chloro-terminated PEG linker for nucleophilic substitution reactions.
From custom synthesis to technical support, we provide comprehensive solutions tailored to your research and development needs.
Our expert R&D team delivers tailored chemical synthesis for novel intermediates and complex molecules.
Dedicated chemical engineers provide technical guidance and application support for optimal product use.
We respond to all inquiries within 1 business day with a clear action plan and timeline.
Scalable manufacturing from lab scale to pilot and bulk production (kg to 100kg+).
We specialize in PEG linkers, protected amino acids (especially HomoArg), peptide linkers, GLP-1 analogue side chains, and labeled protected amino acids & peptides.
Yes, our experienced R&D team provides comprehensive custom synthesis services for novel compounds and intermediates.
Our enterprise standard requires single impurity ≤0.1% and main content ≥98% for most compounds, exceeding typical industry standards.
Yes, small quantities are available for evaluation. Please contact us for sample requests.
No. All products are strictly for scientific research, regulatory registration, and licensed drug manufacturing. Not for personal use.
Reach out for product inquiries, custom synthesis requests, or technical support. We respond within one business day.
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