4-Phenylbenzophenone
Isingeniso Somkhiqizo:
Sijabule ukwethula isengezo sethu sakamuva embonini yamakhemikhali
Bhala umyalezo wakho lapha futhi usithumelele wona

Isingeniso Somkhiqizo:
Sijabule ukwethula isengezo sethu sakamuva embonini yamakhemikhali