2937.29.90/Tibolone API/China

Tibolone API from China

Tibolone is a synthetic steroidal hormone with mixed estrogenic, progestogenic, and androgenic activity used in menopausal HRT. As a structurally unique steroidal hormone derivative, it falls under HTS 2937.29.90 per Chapter 29 classification hierarchy.

Duty Rate — China → United States

0%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Calculate with your customs valueVerify classification with AI

Import Tips

• Provide receptor binding profile data demonstrating mixed hormone activity

• Ensure polymorphic form consistency; affects dissolution and bioavailability

• Declare synthetic origin; natural hormones have different regulatory pathways