Karl Ludwig Reimer (1845-1883). Born in Leipzig, but grew up in Berlin. He studied chemistry at Göttingen, Griefswald and Heidelberg, and took his doctorate under August Wilhem Hofmann (1818-1892) in 1871. He then entered industry, but continued his research. In 1876, he discovered a new synthesis of salicylaldehyde from phenol, which he developed in collaboration with his former Berlin colleague Ferdinand Tiemann (1848-1899). Reimer soon dropped out of this research, presumably to concentrate on the development of Haarmann and Reimer of Holzminden, founded in 1876 and now part of Bayer. His place was taken by Karl Ludwig Reimer (1856-1921).

Karl Ludwig Reimer (1856-1921). Was also the son of a Berlin publisher and may have been a relative. The younger Reimer also went into industry after taking his doctorate and eventually worked in the potash industry at Stassfurt.