</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
3824.91.00.00/Fire Retardant Additive CAS 84808-65-3/Japan

Fire Retardant Additive CAS 84808-65-3 from Japan

A chemical mixture primarily composed of (5-ethyl-2-methyl-2-oxido-3,2-dioxaphosphinan-5-yl)methyl methylphosphonate and bis(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methylphosphonate, known as FR-2 or DOPITE. Used as a flame retardant additive in polyurethane foams, textiles, and coatings to enhance fire resistance. Classified under HTS 3824.91.00.00 due to its specific phosphonate composition as a chemical preparation not elsewhere specified.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Calculate with your customs valueVerify classification with AI

Import Tips

• Verify chemical composition matches the specific phosphonate substances listed in HTS 3824.91 to avoid reclassification

• Obtain Safety Data Sheets (SDS) and ensure EPA TSCA registration for import clearance

Fire Retardant Additive CAS 84808-65-3 from Japan — Import Duty Rate | HTS 3824.91.00.00