🌐EnglishEnglishDeutschEspañolFrançaisРусскийالعربيةفارسی한국어中文日本語EntityQ620084· pop 14· linked from 98 articlesheme BAlso known as protoheme IXchemical compoundAvailable in 13 languagesEspañolFrançaisРусскийالعربيةazbGalicianSerbianSerbian (Latin)SlovakUrduفارسی한국어ConnectionschlorinEntityenzymeEntityCategoriesBiomoleculesChembox image size setChemical articles with multiple compound IDsECHA InfoCard ID from WikidataMultiple chemicals in an infobox that need indexingTetrapyrroles