Patrick Arnold

Patrick Arnold, 59, died on May 12, 2026. Patrick Arnold was an American organic chemist. Patrick Arnold (July 10, 1966 – May 12, 2026) was an American organic chemist known for introducing androstenedione, 1-androstenediol, and methylhexanamine into the dietary supplement market, and for creating the designer steroid tetrahydrogestrinone, also known as THG and "the clear". THG, along with two other anabolic steroids that Arnold manufactured (norbolethone and desoxymethyltestosterone (DMT)), not banned at the time of their creation, were hard-to-detect drugs at the heart of the BALCO Patrick Arnold's death was recorded in Wikipedia's deaths listings, which provide the source details for this notice. Because the available source material is limited to public biographical information, this memorial focuses on documented life and work rather than unsupported private family, service, or cause-of-death details. The record of Patrick Arnold's life is preserved through the public roles, accomplishments, and affiliations that can be verified from those sources.