What We Do


Specializing in the synthesis of complex chemical compounds to accelerate your drug discovery programs

Over the last decade, Bellen has been helping biotech innovators and big pharma companies accelerate their drug discovery process, by providing innovative chemistry solutions.

We are recognized as being enthusiastic, responsive, flexible and cost-effective in delivering chemistry solutions tailored to suit your program requirements. Our team of synthetic and medicinal chemists have consistently delivered high quality and value-added chemistry services to support the diverse synthetic and drug discovery needs of clients around the world.

Why is Bellen your preferred partner for

synthetic and medicinal chemistry services?

  • Customer focus helping to meet tight timeline/urgent needs
  • Experienced technical and management teams with 200 synthetic and medicinal chemists
  • Over 95% on-time delivery rate for the known target compounds, and over 90% for unknown targets
  • Diverse clients: over 1000 clients across start-ups, biotech, and medium to large pharmaceutical businesses
  • Proven problem-solving capability, assurance of delivery, flexibility and transparency
  • A dedicated team of in-house experts in route design and troubleshooting
  • Responsive project management team from quotation to final compound delivery

Key Service Areas:

  • Design and synthesis of focused libraries
  • Support design and synthesis of hit-to-lead chemistry
  • Lead optimization and preclinical candidate selection
  • Synthesis of reference compounds, impurity markers
  • Preparation of building blocks
  • Preparation of key intermediates
  • Non-GMP scale-up to support in toxicity and vivo efficacy studies
  • Method development
  • Chiral separation
  • New technology application

Selected chemistry experiences at Bellen

  • Heterocycles
  • Asymmetric synthesis
  • Natural products 
  • Nucleosides & nucleotides
  • Scale up of hazardous reaction(Diazo, Oxidization, Curtius rearrangement etc) 
  • Photo chemistry
  • Flow chemistry
  • Enzyme calalysis 


Bellen Chemistry Headquarters

Building 9, Courtyard 10
Linhe Street
ShunYi District, Beijing 101300, China

  • Tel +86 10 6040 0362
  • Fax +86 10 8947 5062

Customer Service and Business Inquiry

  • Tel+86 (10) 6040 0362 (8004)
  • Emailcustomer-service@bellenchem.com

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