... crystal.soluble in ethanol,ether,and other organic solvents. 3-Hydroxybenzoic Acid:CAS No.:99-06-9,appearance:white crystal.soluble in ... organic solvents. As an important organic synthetic intermediate,M-hydroxybenzoic acid is primarily used in synthetic pesticide,dyestuff, medicine and coating ... widely used in synthesizing top grade coatings,cosmetics,medical intermediate. 3-Hydroxybenzoic Acid