How should 2-hydroxy-2-phenylacetic acid (CAS: 90-64-2) be stored?

2-hydroxy-2-phenylacetic acid should be stored in a cool, dry, and well-ventilated area, away from direct light. It is typically kept in a sealed container to prevent moisture absorption and maintain stability. Storage at temperatures below 25°C is recommended to avoid degradation, and it should be kept out of reach of children and not exposed to incompatible substances.