Karl Freudenberg, German chemist (died 1983)

Karl Johann Freudenberg was a German chemist who did early seminal work on the absolute configurations to carbohydrates, terpenes, and steroids, and on the structure of cellulose and other polysaccharides, and on the nature, structure, and biosynthesis of lignin. The Research Institute for the Chemistry of Wood and Polysaccharides at the University of Heidelberg was created for him in the mid to late 1930s, and he led this until 1969.

January 29 is the 29th day of the year in the Gregorian calendar; 336 days remain until the end of the year.