Sanofi S.A. is a French multinational pharmaceutical and healthcare company headquartered in Paris, France. Originally, the corporation was established in 1973 and merged with Synthélabo in 1999 to form Sanofi-Synthélabo. In 2004, Sanofi-Synthélabo merged with Aventis and renamed to Sanofi-Aventis, which were each the product of several previous mergers. It changed its name back to Sanofi in May 2011. The company is a component of the Euro Stoxx 50 stock market index.
Sanofi engages in the research and development, manufacturing, and marketing of pharmacological products, principally in the prescription market, but the firm also develops over-the-counter medications. The corporation covers seven major therapeutic areas: cardiovascular, central nervous system, diabetes, internal medicine, oncology, thrombosis, and vaccines (it is the world's largest producer of the last through its subsidiary Sanofi Pasteur).
Sanofi was founded in 1973 as a subsidiary of Elf Aquitaine (a French oil company subsequently acquired by Total), when Elf Aquitaine took control of the Labaz group, a pharmaceutical company formed in 1947 by Sociéte Belge de l'Azote et des Produits Chimiques du Marly; Labaz developed benziodarone in 1957. In 1993, Sanofi made a move into the Eastern Europe market by acquiring a controlling interest in Chinoin, a Hungarian drug company whose 1992, sales totaled about US$104 million. In the same year, Sanofi made its first significant venture into the US, and strengthened its presence in Eastern Europe, by first partnering with Sterling Winthrop and then acquiring the prescription pharmaceuticals business in 1994. Sanofi was incorporated under the laws of France in 1994, as a société anonyme, a form of limited liability company.
Synthélabo was founded in 1970, through the merger of two French pharmaceutical laboratories, Laboratoires Dausse (founded in 1834) and Laboratoires Robert & Carrière (founded in 1899). In 1973, the French cosmetics group L'Oréal acquired the majority of its share capital.