Summer Special
with Sino Biological
Benefit from 50% trial discount on your favourite premium recombinant proteins!
- This special offer is valid until 31st August 2025.
- A 50% discount is applied on the first order of a Sino Biological product of the smallest size if the discount code is used at checkout.
- This promo can only be used once per customer and only applies if the product has not been ordered before.
- This promotion is only open to persons affiliated with a Swiss research lab (academic or commercial) located in Switzerland.
- We reserve the right to exclude you if there is any reason to believe that there has been a breach of these terms and conditions.

Sign up to get the exclusive discount
About Sino Biological
With extensive experience in recombinant protein research and development, the Sino Biological R&D team has produced over 9'300 recombinant proteins currently available in stock. These proteins span a wide range of key research areas, including immune checkpoints, antibody drug targets, CAR-T cell therapy targets, Fc receptors, influenza virus proteins, and cytokines.
Sino Biological’s recombinant proteins are known for their high purity and confirmed bioactivity, making them valuable tools for a variety of scientific applications such as biopharmaceutical target discovery, protein structure and function studies, cell therapy development, and recombinant enzyme analysis.
Premium recombinant proteins
• Five expression systems: > 85% produced in eukaryotic cells for protein structures close to native conformation
• Multiple species
• 80+ automated bioreactors (2L-2000L): Scalable production from milligram to gram quantities
• High stability
• Validated bioactivity
• Low endotoxin levels: < 0.1 EU/μg (LAL-tested)
• Carrier-free formulation: Dissolved in PBS, BSA-free.
• High purity: >95% by SDS-PAGE or HPLC


The purity of human TNFα protein (Cat. No. GMP-10602-HNAE) was >97% determined by SEC HPLC and >96% determined by SDS-PAGE

With extensive experience in recombinant protein research and development, the Sino Biological R&D team has produced over 9'300 recombinant proteins currently available in stock. These proteins span a wide range of key research areas, including immune checkpoints, antibody drug targets, CAR-T cell therapy targets, Fc receptors, influenza virus proteins, and cytokines.
Sino Biological has a strong focus on quality, is ISO 9001:2008 certified and is capable of producing under GMP rules.