Phenolwani fili ne wanda ya ƙunshi zobe benzene da ƙungiyar hydroxyl. A cikin sunadarai, ana ma'anar kayan maye a matsayin mahadi waɗanda ke ɗauke da ƙungiyar hydroxyl da sarkar hydrocarbon. Sabili da haka, dangane da wannan ma'anar, phenol ba giya bane.

Koyaya, idan muka kalli tsarin phenol, zamu iya ganin cewa yana dauke da kungiyar hydroxyl. Wannan yana nufin cewa phenol yana da wasu halaye na giya. Koyaya, tsarin Phenol ya bambanta da tsarin wasu giya saboda yana dauke da zobe benzene. Wannan zoben benzene yana ba da phenol na musamman kaddarorin da halaye dabam dabam dabam da na giya.

Don haka, dangane da halaye masu tsari na phenol da giya, zamu iya cewa phenol ba giya bane. Koyaya, idan kawai muna kallon gaskiyar cewa phenol ya ƙunshi ƙungiyar hydroxyl, to yana da wasu halaye na giya. Saboda haka, amsar tambaya "ita ce phenol wani giya?" ba zai iya zama kawai ko a'a ba. Ya dogara da mahallin da ma'anar barasa muna amfani.