🌐EnglishEnglishPolskiالعربيةفارسی한국어中文日本語EntityQ7307279· pop 18Template:AlkynesWikimedia templateAvailable in 18 languages中文日本語العربيةBanglaCzechKannadaMacedonianMalayPolskiRomanianCategoriesChemical compound navigational boxesOrganic chemistry navigational boxes