Phenolni urujijo ikubiyemo impeta ya bejezene hamwe nitsinda rya hydroxyl. Muri chimie, alcoy asobanurwa nkibice birimo itsinda rya hydroxyl hamwe numunyururu wa hydrocarbone. Kubwibyo, ukurikije iki gisobanuro, fenol ntabwo ari inzoga.

Ariko, niba turebye imiterere ya fenol, turashobora kubona ko arimo hydroxyl itsinda. Ibi bivuze ko fenol ifite ibintu bimwe na bimwe biranga inzoga. Ariko, imiterere ya Phenol iratandukanye nimiterere yizindi alcool kuko irimo benzene impeta. Iyi mpeta ya bejezene itanga ibihembo byerekana imiterere yihariye nibiranga bitandukanye nibya alcool.

Rero, dushingiye kubiranga imiterere ya fenol na alcool, turashobora kuvuga ko fenol atari inzoga. Ariko, niba tureba gusa ko fenol irimo hydroxyl itsinda, noneho ifite ibintu bimwe na bimwe biranga inzoga. Kubwibyo, igisubizo cyikibazo "ni urwanira inzoga?" ntishobora kuba yego cyangwa oya. Biterwa nurwego nubusobanuro bwinzoga dukoresha.