Chemical compound of nitrogen and hydrogen that is a colorless gas with a pungent smell; commonly used in fertilizers and refrigerants.

(bound form) benzyl; used to represent the benzyl group in chemical names like 苄基 biàn​jī

An antibiotic drug extracted from the culture fluid of Penicillium molds; used clinically to treat conditions like pneumonia and syphilis. [Also known as 盘尼西林 pán​ní​xī​lín]