Carl Djerassi: Jewish American Heritage Month, Recognizing Immigrants and Refugees

In celebration of Jewish Heritage Month, we continue to recognize the economic, cultural, and social contributions of notable immigrants and refugees who’ve helped shape America’s vibrant tapestry. Today, we spotlight trailblazing scientist Dr. Carl Djerassi.

Carl Djerassi was born in Vienna, Austria, in 1923. Born to physician parents, he spent his first five years in Bulgaria before moving back to Vienna following their divorce. When Austria refused him citizenship at 14, his parents briefly remarried, allowing him to escape Nazi Germany while he fled back to Austria. There, he became fluent in English while studying at the American College of Sofia.

At 16, Carl and his mother immigrated to the United States without a penny in their pockets, settling in New York. In the U.S., Djerassi enrolled at Newark Junior College, New Jersey’s first-ever community College. He later graduated summa cum laude from Kenyon College before earning his PhD in organic chemistry from the University of Wisconsin. His thesis focused on the transformation of hormones through sequential chemical reactions.

In 1942, Carl found work at CIBA (now Novartis AG). There, he developed a patent for one of the first commercial antihistamines. Seven years later, he took a job as director of research at Syntex in Mexico City, where he developed his most renowned scientific achievement. In 1951, along with colleagues, Djerassi synthesized norethindrone, a synthetic progestin. The novel breakthrough created the infrastructure for the first effective oral contraceptive, providing women unprecedented autonomy over their own reproductive choices. The breakthrough sparked profound social change.

Djerassi went on to author over 1,200 scientific papers. He held over 50 original patents while making considerable leaps forward in the field of organic chemistry. Outside the lab, Djerassi was an advocate for the scientific profession. Through the 1970s, he worked as a professor at the prestigious Stanford University. Besides mentoring students, he was part of a cohort that developed expert systems, a computer replicating the decision-making ability of humans – it was one of the very first uses of artificial intelligence in biomedical research.

Djerassi’s work earned him numerous honors. They include a National Medal of Science and induction into the National Inventors Hall of Fame.

Carl Djerassi passed away in 2015, at the age of 91.