pai N.E. = 7 => structura cu naftalina ± catena laterala + o grupare OH
formula generala = CnH2n-12O
100% ........................ 10,126% O
miu ........................... 16g O
=> miu = 158 g/mol
=> 14n-12+16 = 158 => n = 11
=> C11H10O
=> CH3-C10H6-OH