🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng Việtالعربية中文EntityQ15503979· pop 5· linked from 4 articlesC18H12O9The molecular formula C18H12O9 may refer to:ArticleThe molecular formula C18H12O9 may refer to: Eckol Norstictic acid Variegatic acidCategory:Molecular formulasConnectionschemical formulaEntityisomerEntityCategoriesMolecular formulas