五环[6.6.6.02,7.09,14.015,20]二十碳-2,4,6,9,11,13,15,17,19-九烯-4-甲醛

2,7-diformyltriptycene

2-Hydroxy-4-isopropylbenzaldehyde

2,3-二氢-3-甲基-2-氧代-6-苯并噁唑羧醛