diethyl [4-(prop-2-yn-1-yloxy)benzylidene]propanedioate 2024년 3월 11일 L Biochemdiethyl [4-(prop-2-yn-1-yloxy)benzylidene]propanedioate에 댓글 남기기 diethyl [4-(prop-2-yn-1-yloxy)benzylidene]propanedioate CAS # 146763-69-1 97%