Yes, 2?naphthol is a hazardous substance. 2?naphthol, also known as β?naphthol, is an important organic raw material and aromatic phenolic compound, widely used in the synthesis of dyes, pigments, pesticides, and pharmaceutical intermediates. It is a hazardous chemical that is harmful if swallowed or inhaled, can cause severe eye irritation and damage, may trigger allergic skin reactions, and poses significant toxicity to aquatic organisms. In addition, long?term or repeated exposure can potentially damage organs such as the liver, kidneys, and blood system, so it must be handled with proper personal protective equipment and stored in compliance with hazardous substance regulations.