36983-36-5
2,4-二氧代-4-(2-噻吩)丁酸乙酯
→
105356-57-8
4-噻吩-2-基-2,4-二氧丁酸
88-15-3
2-乙酰基噻吩
339026-80-1
3-(2-oxo-2-thiophen-2-ylethylidene)-4H-1,4-benzoxazin-2-one