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

Diethylstilbestrol (DES) from Japan

Diethylstilbestrol is a synthetic non-steroidal estrogen historically used in pregnancy support and cancer treatment. Despite non-steroidal structure, classified under HTS 2937.23.5010 as estrogen structural analogue used primarily as hormone per heading scope.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.6215%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

Import Tips

Restricted due to carcinogenicity - requires special FDA import authorization; Include safety data sheets noting historical usage restrictions; Limited to research quantities typically