Fluorometholone from China
Fluorometholone is a 6α-methyl-9α-fluoro prednisolone derivative, halogenated adrenal cortical hormone analog used primarily in ophthalmic suspensions for anti-inflammatory effects. Classified under HTS 2937.22.00.00 as chemically defined halogenated steroidal hormone.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals: 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
• Ophthalmic-grade requires endotoxin <0.5 EU/mg certification
• Declare 6α-methyl stereochemistry critical for classification confirmation
• Light-sensitive; improper packaging leads to degradation and purity disputes