Back بيرسي لافون جوليان Arabic پرسی لاون جولیان AZB Percy Lavon Julian German Percy Lavon Julian Spanish پرسی لاون جولیان Persian Percy Lavon Julian French Պերսի Ջուլիան Armenian Percy Lavon Julian IO Percy Lavon Julian Italian Percy Lavon Julian Polish
Percy Lavon Julian | |
|---|---|
_portrait.jpg) Julian c. 1940–1968 | |
| Born | April 11, 1899 Montgomery, Alabama, U.S. |
| Died | April 19, 1975 (aged 76) Waukegan, Illinois, U.S. |
| Education | DePauw University (B.A.) Harvard University (M.S.) University of Vienna (PhD) |
| Occupation | Chemist |
| Spouse | |
| Children | 2 |
| Scientific career | |
| Fields | Chemistry |
| Institutions | Howard University |
| Doctoral advisor | Ernst Späth |
Percy Lavon Julian (April 11, 1899 – April 19, 1975) was an American research chemist and a pioneer in the chemical synthesis of medicinal drugs from plants.[1] He was the first to synthesize the natural product physostigmine and was a pioneer in the industrial large-scale chemical synthesis of the human hormones progesterone and testosterone from plant sterols such as stigmasterol and sitosterol. His work laid the foundation for the steroid drug industry's production of cortisone, other corticosteroids, and birth control pills.[2][3][4]
He later started his own company to synthesize steroid intermediates from the wild Mexican yam. His work helped greatly reduce the cost of steroid intermediates to large multinational pharmaceutical companies, helping to significantly expand the use of several important drugs, including synthesizing cortisone.[5][6]
He received more than 130 chemical patents. He was one of the first African Americans to receive a doctorate in chemistry. He was the first African-American chemist inducted into the National Academy of Sciences, and the second African-American scientist inducted (after David Blackwell) from any field.[5]
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