(1) 2, 2,’4, 4’-Tetrahydroxybenzophenone [131-55-5]
(2) 2, 2’-Dihydroxy-4,4’-Dimethoxybenzophenone [131-54-4]
(3) 2, 3, 4-Trihydroxybenzophenone [1143-72-2]
(4) 2, 3, 4, 4’- Tetrahydroxybenzophenone [31127-54-5]
(5) 3,4-Dihydroxybenzophenone [10425-11-3]
(6) 4- Biphenyl Acetic Acid [5728-52-9]
(7) 4- Biphenyl acetophenone [92-91-1]
(8) Isatoic Anhydride [118-48-9]
(9) 2, 5-Dihydroxytoluene [95-71-6] , Methyl Hydroquinone
(10) 1, 2-Dimethoxybenzene [91-16-7]　, Veratrole
(11) 2,4-Dihydroxybenzamide [3147-45-3] (P-Hydroxysalicylamide)
(12) 2-Hydroxy-4-Methoxybenzamide (P-Methoxysalicylamide)
(13) Methyl 2,4-Dimethoxybenzoate [2150-41-6]
(14) Methyl 2,4-Dimethoxybenzoate [2150-47-2]
(15) Methyl-2-Hydroxy-4-Methoxybenzoate [670-56-8]
(16) 2,4-Dihydroxybenzaldehyde [95-01-2]
(17) 3,4-Dimethoxybenzaldehyde [120-14-9]
(18) 2,4- Dihydroxyacetophenone [ 89-84-9]
(19) 2,5-Dimethoxyacetophenone [1201-38-3]
(20) 3-Bromo-4-Hydroxybenzoic Acid [14348-41-5]
(21) 3-Bromo-4-Hydroxyphenyl Acetic Acid [37847-52-2]
(22) P-Cyanophenol [767-00-0]
(23) 2,4-Dihydroxybenzoic acid [89-86-1]
(24) 4,4’-Difluorobiphenyl [398-23-2]
(25) 4,4’-Biphenyldicarboxyaldehyde [66-98-8]