996-82-7
sodium 1,3-diethoxy-1,3-dioxopropan-2-ide
→
73693-24-0
4-anthracen-2-yl-4-oxobutanoic acid
108-30-5
丁二酸酐
+
613-31-0
9,10-二氢蒽
936928-63-1
120-12-7
蒽