Ark Pharm

Ark Pharm was a chemical supplier and contract research organization (CRO) that specialized in providing medicinal building blocks, organic intermediates, and novel reagents to the pharmaceutical and biotechnology industries. Based in Libertyville, Illinois, the company maintained an extensive catalog of small molecule compounds used in drug discovery and development. In addition to its catalog business, Ark Pharm provided custom synthesis and contract manufacturing services to support lead optimization and scale-up projects. The company's operations effectively ceased following federal legal actions in 2019 involving the unauthorized distribution of controlled substance analogues. Prior to its closure, it was a widely used resource for medicinal chemists and pharmaceutical researchers globally.