What are the physical and chemical properties of 2H-Chromene-3-carboxylic acid (CAS: 22649-28-1)?

2H-Chromene-3-carboxylic acid (CAS: 22649-28-1) is a white crystalline solid with a molecular weight of approximately 188.14 g/mol. It is slightly soluble in water but soluble in common organic solvents like ethanol and acetone. This compound is moderately reactive, particularly with bases, leading to the formation of sodium salts and other derivatives. It shows good stability under normal conditions but should be stored in a cool, dry place away from direct sunlight.