5,5′-[(1-Methylethylidene)bis(4,1-phenyleneoxy)]bis-1,3-isobenzofurandione 2024년 3월 11일 L Biochem 5,5′-[(1-Methylethylidene)bis(4,1-phenyleneoxy)]bis-1,3-isobenzofurandione CAS # 38103-06-9 99%