candidate: Other fields where chemical degrees are useful include astrochemistry ( and cosmochemistry ) , atmospheric chemistry , chemical engineering , chemo - informatics , electrochemistry , environmental science , forensic science , geochemistry , green chemistry , history of chemistry , materials science , medical science , molecular biology , molecular genetics , nanotechnology , nuclear chemistry , oenology , organometallic chemistry , petrochemistry , pharmacology , photochemistry , phytochemistry , polymer chemistry , supramolecular chemistry and surface chemistry .