7149-59-9
3-氧代己二酸二乙酯
→
3400-90-6
4-cyclopentyl-4-oxobutanoic acid
1057673-87-6
4-Cyclopentyl-3-ethoxycarbonyl-4-oxo-buttersaeure-ethylester
4407-37-8
24922-00-7
3-环戊基-3-氧代丙酸乙酯
4524-93-0
环戊基甲酰氯
108-30-5
丁二酸酐
+
137-43-9
溴代环戊烷