Assay (HPLC)：≥99.0% Melting Point：135–138 ℃ Loss on Drying：≤0.3% Residue on Ignition：≤0.1% Water Content：≤0.2% Heavy Metals：≤10 ppm Free Phenol Impurity：Compliant Appearance：Conforms to standard

Identification：IR / NMR spectrum compliant

1. Pharmaceutical intermediate
   Essential aromatic aldehyde intermediate for synthesis of antibacterial, anti-inflammatory, antiviral, cardiovascular drugs and tyrosinase inhibitors.
2. Pesticide intermediate
   Raw material for fungicides, insecticides, plant growth regulators and heterocyclic pesticide derivatives.
3. Dye & fragrance intermediate
   Used for azo dyes, mordant dyes, coumarin flavors, essence and cosmetic functional additives.
4. Organic synthesis building block
   Applied in condensation reaction, Schiff base, chelating agents, photosensitive materials and anticorrosion additives.
5. Analytical reagent
   Used as metal ion complexing color reagent, pH indicator and biochemical laboratory raw material.