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Sino Biological, which we represent and presented to the purchase of researchers by ALFAGEN, Sino Biological is an international reagent supplier and service provider. The company specializes in recombinant protein production and antibody development. All of Sino Biological’s products are independently developed and produced, including recombinant proteins, antibodies and cDNA clones. Sino Biological is the researchers’ one-stop technical services shop for the advanced technology platforms they need to make advancements. In addition, Sino Biological offer pharmaceutical companies and biotechnology firms pre-clinical production technology services for hundreds of monoclonal antibody drug candidates.

Sino Mission

To advance life science and improve human health through the provision of superior quality research reagents and CRO services.

Sino People

  • 450+ Research Staff & Growing
  • 130+ staff with Master or PhD degree

Sino Facility

  • 291,700 sq ft Lab & Office Space
  • 20,450 sq ft GMP Facility

Sino Biological currently produces and sells more than 46,000 products which are all in stock. There are 6,000 kinds of recombinant proteins, of which 3,800 proteins expressed by human cells that are closest to natural structure and property. Sino Biological can also provide 12,000 kinds of antibodies, including 4,600 kinds of monoclonal antibodies. All the products can cover multiple research areas of life science. Sino Biological can provide a “one-stop” shop of research reagent and technical service for basic scientific research (including molecular biology, cell biology, immunology, developmental biology, stem cell research) and innovative drug research and development.


  • Capacity & Capability
  • Milligram level protein production
  • All produced in house
  • 2L—2000L bioreactor to ensure high throughput manufacture
  • As fast as 4 weeks from gene sequence to protein production
  • Recombinant Protein Toolkit
  • 6000+ proteins are in stock
  • Multiple species & various tags

Protein Advantages

>85% expressed by eukaryotic cells
High purity & low endotoxin

Bioactivity validated
Animal free & carrier free


Custom Protein Production Services

One-stop: gene cloning ->cell culture -> protein purification -> protein characterization
High quality: Proprietary technology and optimized process
Fast turnaround: From gene sequence to purified protein within 4 weeks in HEK293 cells
Low risk: Milestone payments
Rich experience: Over 6000 recombinant proteins, from milligram to gram, have been successfully produced.


Advanced Antibody Development Platform

Antigen Design and Expression Technology
Rabbit Monoclonal Antibody Library Technology
Mouse Hybridoma Technology
Single B-cell Technology

Sino Biological CD71 rabbit MAb, placenta tissue IHC

CD71 rabbit Polyclonal antibody (brand A), placenta tissue IHC

CD71 mouse MAb (brand B), placenta tissue IHC

Strict Quality Control

100% produced in-house, no OEM productsValidated in Knock-out cells/tissuesEvery batch is fully validated in various applications

Custom Antibody Development & Production Services

Rich experience: 10,000+ custom antibody projects (99% success rate)
Fast speed: Fastest delivery time in 2-3 weeks from sequence to purified antibodies
Large-scale production ability: 30-100 grams custom-tailored mAb production in weeks

Recombinant Antibody Production Service

High-throughput Recombinant Antibody Production
Large-scale Antibody Production
Chimeric Antibody
Antibody Fragment
Bispecific Antibody

Standard Antibody Development Service

Rabbit MAb
Mouse MAb
Rabbit PAb

Fast Antibody Development Service

Mouse MAb
Rabbit PAb


Your Preferred cDNA ORF Clones

Extensive Products
Gene bank: 28,000 Genes are in stock and ready to ship, including 100+ human full-length gene
Multiple species: Human, Mouse, Rabbit, Rat, Cynomolgus, Rhesus, Canine, Ferret, Zebrafish, Virus
Various tags: GFPSpark®, OFPSpark®, Flag, Myc, His, HA at C/N terminus


Strict Quality Control
Full length sequence confirmed
100% accurate sequence guaranteed
Expression Validated
Expression ready vectors with high expression level. Enhanced signals are showed in the validation experiments below.

Custom Molecular Biology Services

High qualityLow riskRich experience

Real Time PCR Primer and Prode Design

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