1. Key building block: As an intermediate for beta-receptor blockers (such as atenolol), its ortho-hydroxyl group enhances the metal chelating ability and optimizes catalyst efficiency (yield increases by 12-15%)
2. Special dye precursor: Hydroxyl groups provide active sites, suitable for modification of azo dyes, significantly improving the color fastness of cotton fabrics (up to grade 4-5)

Double PE bags (each bag ≤5kg)