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Mometasone Furoate from Japan

Mometasone furoate is a potent 21-chloro-11β,17-dihydroxy-16α-methylpregna-1,4-diene-3,20-dione 17-(2-furoate) halogenated corticosteroid from adrenal cortical hormone series. HTS 2937.22.00.00 applies due to chlorine halogenation and primary hormonal use.

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

Furoate ester hydrolysis sensitivity requires low-moisture packaging (<20% RH)

Nasal spray API needs preservative compatibility data

21-chloro position critical for classification; dechlorinated impurities scrutinized