Molecular formula: C₁₀H₁₀N₂O

Main purpose: Used for synthesizing antipyretic and analgesic drugs such as metamaterial, antipyrine, and aminopyrine; Manufacturing acidic media such as jujube red BN and other acidic dyes; Widely used in the synthesis of solvent dyes such as solvent yellow 82, solvent orange 54, and solvent red 122; Organic azo pigments such as synthetic pigment Orange 13.