CRYSTAL OF p-HYDROXYBENZOIC ANHYDRIDE AND PROCESS FOR PRODUCING THE SAME
摘要
<p>The present invention provides a process for preparing crystalline parahydroxybenzoic acid anhydride, comprising the step of precipitating and isolating parahydroxybenzoic acid in an aqueous solvent at a temperature equal to or above the transition temperature of parahydroxybenzoic acid.</p>
