Cassella AG, formerly Leopold Cassella & Co. and Cassella Farbwerke Mainkur AG, commonly known as Cassella, was a German chemical and pharmaceutical company with headquarters in Frankfurt am Main. Founded in 1798 in the Frankfurt Jewish Alley by Leopold Cassella, Cassella operated as an independent company until 1995 and was one of many predecessor companies of today's Sanofi. Its main products were dyes, drugs, cosmetics and various other chemical products. Much of its history is closely associated with the Gans family, a prominent family of industrialists and philanthropists and former owners of Cassella.
The company was founded as a spice store inside the Frankfurt Jewish Alley in 1798 by the Jewish businessman Leopold Cassella and his brother-in-law Isaac Elias Reiss, and was originally named Cassel & Reiss. In its early years, the company focused on importing luxury goods from India, China and South America, and Cassel and Reiss also founded a sugar refinery in 1812.
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Frankfurt am Main