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Hydrocortisone Propionate Micronized from China

Micronized hydrocortisone propionate powder (<5μm particle size) enhances bioavailability in inhalation and topical formulations. Falls under HTS 2937.29.90.20 as a propionate ester of the steroidal hormone hydrocortisone.

Duty Rate — China → United States

100%

Rate breakdown

9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% 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

Document laser diffraction particle size analysis confirming D90 <5μm for micronized grade

Include amorphous content analysis as it affects stability and classification purity

Avoid anti-caking agents exceeding 1% which could trigger 'additive' reclassification per Chapter notes