4443-39-4
2-(1,3-dioxoisoindol-2-yl)butanedioic acid
→
4443-40-7
2-(2,5-dioxooxolan-3-yl)isoindole-1,3-dione
85-44-9
苯酐
+
617-45-8
DL-天冬氨酸