Isoproterenol Hydrochloride from China
Isoproterenol hydrochloride is the hydrochloride salt of isoproterenol, a synthetic catecholamine hormone derivative used primarily for bronchospasm relief in asthma. It is classified in HTS 2937.90.2000 as a structural analogue of catecholamine hormones with primary beta-adrenergic hormonal activity. This meets Chapter 29's criteria for chemically defined hormone derivatives.
Duty Rate — China → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Provide pharmacopoeia compliance certificates (USP/EP) to validate as hormone API under this specific subheading
• Document light-sensitive packaging requirements to prevent degradation during transit