Cedarburg Hauser Pharmaceuticals Scientists

Our scientists have extensive experience successfully working with a wide range of molecules, types of chemistry reactions and types of controlled substances.

Our chemists have developed some of the most successful APIs on the market today and can help you:

• Develop your target compounds
• Qualify and validate your existing processes
• Enhance and optimize your processes
• Scale up your API for toxicity trials, all phases of your clinical trials and finally to commercialization.

Scientific Leadership Team

Our scientific leadership team is comprised of some of the most experienced, accomplished and recognized scientists working to develop processes and analytical methods for active pharmaceutical ingredients (APIs) and pharmaceutical intermediates today.  

Our experienced scientific leadership team includes:

Paul Zizelman – Director of Scientific Operations

John Lynch, Ph.D. – Director of Research & Development

Gamini Jayatilake, Ph.D. – Director of Process Chemistry

Jonathan Pease, Ph.D. – Senior Scientist

Rafail Usatinsky, Ph.D. – Analytical Services Manager

Robert Vicente – Director of Quality

Our Scientists & Their Experience

Scientific Operations

Paul Zizelman – Director of Scientific Operations

Research & Development Scientists

John Lynch, Ph.D. – Director of Research & Development

Gamini Jayatilake, Ph.D. – Director of Process Chemistry

John Cabaj – Senior Scientist

Xiong Fu, Ph.D. – Senior Chemist

Jonathan Pease, Ph.D. – Senior Scientist

Catherine Smith, Ph.D. – Senior Scientist

Kevin Wirtz, Ph.D. – Senior Scientist

Tom Benson – Scientist

Jeff Hutchison – Scientist

Jeff McGilvra, Ph.D. – Scientist

Analytical Chemists

Rafail Usatinsky, Ph.D. – Analytical Services Manager

Lijie Cui, Ph.D. - Senior Analytical Scientist