Felix Hoffmann (21 January 1868 – 8 February 1946) was a German chemist notable for re-synthesising diamorphine (independently from C.R.

Two years later he earned his doctorate, also magna cum laude, after completing his thesis titled "On certain derivatives of dihydroanthracene".

On 10 August 1897 Hoffmann synthesized acetylsalicylic acid (ASA) while working at Bayer under Arthur Eichengrün.

[2] He also synthesized diamorphine (heroin), previously achieved by Charles Romley Alder Wright[2] by acetylating different molecules.

Hoffmann first claimed to be the "inventor" of aspirin (as opposed to just the synthesizer) in a footnote to a German encyclopedia published in 1934, saying that his father had complained about the bitter taste of sodium salicylate, the only drug then available to treat rheumatism.

Finally, he claimed that Hoffmann's role was restricted to the initial lab synthesis using his (Eichengrün's) process and nothing more.