Pierre-Jean Robiquet References Quizzes So Much Chemistry, So Little Time Quiz Pierre-Jean Robiquet French chemist Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: codeineFirst isolated by French chemist Pierre-Jean Robiquet in 1832, codeine may be extracted directly from opium, but most codeine is produced from morphine, another opium derivative. Read MoreFirst isolated by French chemist Pierre-Jean Robiquet in 1832, codeine may be extracted directly from opium, but most codeine is produced from morphine, another opium derivative. Read More