</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Cresyl Diphenyl Phosphate from Mexico

Cresyl diphenyl phosphate is an organophosphate ester employed as a hydraulic fluid base and flame retardant in aviation lubricants. It qualifies for HTS 2919.90.50.50 as a non-specific phosphoric ester and salt under the chapter notes for chemically defined organic compounds. The mixed aryl structure places it in the 'other' category.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Submit technical data sheets showing phosphate ester structure to avoid reclassification as hydrocarbon mixtures

Comply with DOT hazardous material shipping requirements for flammable liquids

Verify no neurotoxic impurities exceed 0.1% to prevent pesticide classification