118803-65-9
(E)-4-(5-fluoro-2-hydroxyphenyl)-4-oxo-2-butenoic acid
→
~95%
105300-40-1
6-氟-3,4-二氢-4-氧代-2H-1-苯并吡喃-2-甲酸
459-60-9
4-氟苯甲醚