Welcome


Chyall Pharma is an independent consulting firm that provides technical expertise to the pharmaceutical and chemical industries. Chyall Pharma is operated by Dr. Leonard Chyall, who has over 15 years of work experience in the pharmaceutical industry.

Our consulting services are directed toward scientific data and document review, laboratory testing, report writing, and guidance on the appropriate steps needed to move your project forward. We have also helped our clients with troubleshooting manufacturing processes. Chyall Pharma also provides expert services to companies and attorneys involved in intellectual property matters.

About Us


Dr. Chyall has experience in the identification, characterization, and development of suitable solid forms of pharmaceutical drug substances:

  • Crystal polymorphism
  • Salt and cocrystal screen technologies
  • Amorphous materials
  • Enantiomer Resolution
  • Solid form stability technologies

Dr. Chyall has extensive experience in the characterization of pharmaceutical solids using numerous techniques including:

  • X-ray powder diffraction analysis
  • Differential scanning calorimetry
  • Thermogravimetric analysis
  • Solubility measurements
  • Karl Fischer analysis
  • NMR spectroscopy
  • Vibrational spectroscopy
  • Optical microscopy

Dr. Chyall has conducted reverse engineering studies to identify the composition of commercial drug products and the methods by which they are manufactured. Dr. Chyall is an organic chemist with extensive experience pharmaceutical manufacturing technologies for drug substances and drug products.

Prior to founding Chyall Pharma in 2011, Dr. Chyall worked for over a decade as a pharmaceutical research chemist at SSCI, Inc. and then at Aptuit, Inc. where he provided research and consulting services to a wide variety of clients within the pharmaceutical industry. Dr. Chyall graduated from Oberlin College with AB degree in chemistry, and from the University of Minnesota with Ph.D. in chemistry. Dr. Chyall was a postdoctoral fellow in the chemistry department at Purdue University. He has authored or co-authored 23 publications in peer-reviewed scientific journals, and is a co-inventor on five patents granted by the United States Patent and Trademark Office. Dr. Chyall has testified as an expert witness in United States courts and abroad.

Contact Us


Chyall Pharma is a member of the Purdue Research Park of West Lafayette, which is located near the main campus of Purdue University. The Purdue Research Park is home to over 100 technology-based companies operating in areas such as life sciences, homeland security, engineering, agricultural science, and information technology.

For more information about how Chyall Pharma may be able to help you please contact us using the form given below.

  • Chyall Pharmaceutical Consulting, LLC
  • 1281 Win Hentschel Blvd.
  • West Lafayette, Indiana 47906
  • United States
  • Tel. 765.237.3391