🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsРусскийالعربية中文EntityQ11206055· pop 5· linked from 17 articlesJohn C. SheehanAmerican chemist (1915–1992)ConnectionsantibioticEntitysteroidEntityCategories1915 births1992 deaths20th-century American chemists20th-century American inventorsAmerican organic chemistsAmerican people of Irish descentAmerican Roman CatholicsAndrews University alumniMembers of the United States National Academy of SciencesMIT School of Science facultyUniversity of Michigan alumni