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2937.50.00.00/Unoprostone Isopropyl/China

Unoprostone Isopropyl from China

Unoprostone isopropyl, a docosanoid prostaglandin F2α isomer, treats glaucoma. Classified under HTS 2937.50.00.00 as prostaglandin ester structural analogue per Chapter 29 ester rules. Longer chain maintains hormonal classification.

Duty Rate — China → United States

0%

Rate breakdown

9903.05.860%Universal product exemption (U.S. note 52(b))
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Import Tips

• Document 22-carbon chain distinguishing from C20 prostaglandins

• Isopropyl ester follows parent acid classification per Chapter Note

• Primarily Japanese market; ensure ICH Q1A stability equivalence

Unoprostone Isopropyl from China — Import Duty Rate | HTS 2937.50.00.00