Ortho Hydroxybenzoic Acid; 2-Hydroxybenzoic acid (ACI); Salicylic acid (6CI, 8CI); Advanced Pain Relief Callus Removers; Dr. Scholl's Callus Removers; Salicylic acid collodion,2-Hydroxybenzoic acid,Salicylic Acid is an impurity of Acetylsalicylic Acid . Acetylsalicylic acid Impurity B.;Impurity in commercial preparations of Salicylic Acid,Mesalazine