83935-73-3 Urea,N-(2-hydroxyethyl)-N'-(2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin-15-yl)-

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83935-73-3 Urea,N-(2-hydroxyethyl)-N'-(2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin-15-yl)- - 化工 AI 网