Welcome to Asnail global website.

We are dedicated to supplying best products for heparin analysis and coagulation testing.


Found in 2017, Beijing Asnail Biotechnology Co., Ltd provides a comprehensive range of products and services for the heparin industry, including quality Control, raw material procurement, production technology ,research and development, regulatory compliance and training.

Asnail’s products for heparin analysis include:

Asnail’s products for coagulation testing include:

Asnail’s Materials include:

Crude Heparin /Heparin/ Enoxaparin /Nadroparin /Dalteparin

Service include:

Technology transfer of pharmaceutical manufacturing

Evaluation Of Consistency & Immunogenicity reserch

We also distribute poduct of famous brand include:

Agilent/Shimadzu/ThermoFisher/Waters/YMC/Astec/Phenomenon/Tosoh/and many more columns or consumables!


Asnail is headquartered in Beijing, with manufacturing facilities in China.

Heparin Analysis

Asnail manufactures high-quality reagents fro heparin analysis.

  • Heparinases, heparin disaccharides and oligosaccharides for determining 1,6-anhydro derivatives in enoxaparin sodium.
  • Chromogenic substrates (S-2222, S-2238 and S-2765), activated factor X (FXa), thrombin (FIIa) and antithrombin (AT) for determining anti-FXa and anti-FIIa potencies in heparin products.
  • Heparin polysaccharides for determining molecular weight distribution of heparin.
  • HPLC columns: SAX columns for determining 1,6-anhydro species in enoxaparin sodium, and SEC columns for determining molecular weight distributions of heparin and LMWHs.
  • PCR kits for determining animal origins of crude heparin.

Coagulation Testing

Asnail provides a broad range of reagents and raw materials for coagulation testing.