🌐EnglishEnglishBahasa IndonesiaPolskiPortuguêsTiếng ViệtРусскийالعربيةفارسیไทย中文EntityQ8509249· pop 19Category:Heterocyclic compounds by elementWikimedia categoryAvailable in 18 languages中文РусскийPortuguêsالعربيةBahasa IndonesiaBasquebe_x_old