Phenolwani fili ne wanda ya ƙunshi zoben benzene da ƙungiyar hydroxyl.A cikin ilmin sunadarai, an bayyana barasa a matsayin mahadi waɗanda suka ƙunshi ƙungiyar hydroxyl da sarkar hydrocarbon.Saboda haka, bisa ga wannan ma'anar, phenol ba barasa ba ne.

Duk da haka, idan muka kalli tsarin phenol, zamu iya ganin cewa yana dauke da rukunin hydroxyl.Wannan yana nufin cewa phenol yana da wasu halaye na barasa.Koyaya, tsarin phenol ya bambanta da tsarin sauran barasa saboda yana ɗauke da zoben benzene.Wannan zobe na benzene yana ba phenol kaddarorinsa na musamman da halaye waɗanda suka bambanta da na barasa.

Don haka, dangane da halaye na tsarin phenol da alcohols, zamu iya cewa phenol ba barasa bane.Koyaya, idan muka kalli gaskiyar cewa phenol ya ƙunshi ƙungiyar hydroxyl, to yana da wasu halaye na barasa.Saboda haka, amsar tambayar "Shin phenol barasa ne?"ba zai iya zama kawai e ko a'a ba.Ya dogara da mahallin da ma'anar barasa da muke amfani da su.