114094-61-0
2,3-bis(1-methylethoxy)-4-hydroxy-4-methylcyclobut-2-en-1-one
→
~95%
114094-69-8
3-(1-methylethoxy)-4-methylcyclobut-3-ene-1,2-dione
29769-75-3
3-hydroxy-4-methylcyclobut-3-ene-1,2-dione
1271-55-2
乙酰基二茂铁