Preparation of 3-hydroxyanthranizoic acid hydrochloride_Kain Industrial Additive

Overview[1][2] 3-Hydroxyanthranilic hydrochloride is an amino compound and can be used as a pharmaceutical synthesis intermediate. Structure Preparation[1-2] Method 1: 3-Hydroxyanthranilic hydrochloride is prepared as follows: Add 6.0g 85.3% H3PO4 to a 100ml three-neck flask equipped with a mechanical stirrer, nitrogen outlet and oil bubbler. Cool to 0°C in an ice bath. To this solution…