Other
Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones: > Other: > Catecholamine hormones, their derivatives and structural analogues: > Other: > Other
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2937.90.20.00
Epinephrine Bitartrate
Epinephrine bitartrate is the bitartrate salt of epinephrine, a catecholamine hormone used primarily as an emergency treatment for anaphylaxis and cardiac arrest. It falls under HTS 2937.90.2000 as a derivative of catecholamine hormones (specifically adrenaline) used primarily for its hormonal effects in stimulating alpha and beta adrenergic receptors. This synthetic reproduction is chemically defined and meets Chapter 29 requirements for separate organic compounds.
Norepinephrine Bitartrate
Norepinephrine bitartrate is a synthetic salt form of norepinephrine, a catecholamine hormone essential for treating septic shock and hypotension via vasopressor effects. Classified under HTS 2937.90.2000 as a structural analogue of catecholamine hormones used primarily for hormonal action on adrenergic receptors. It qualifies as a separate chemically defined organic compound per Chapter 29 notes.
Dopamine Hydrochloride
Dopamine hydrochloride is the hydrochloride salt of dopamine, a natural catecholamine hormone used primarily for renal perfusion in shock therapy. Classified under HTS 2937.90.2000 as a catecholamine hormone derivative with dopaminergic and adrenergic hormonal actions. It is a chemically pure organic compound per Chapter 29 scope.
Methoxamine Hydrochloride
Methoxamine hydrochloride is an obsolete but occasionally imported synthetic catecholamine derivative used as a vasopressor hormone. Classified in HTS 2937.90.2000 as a structural analogue with alpha-adrenergic hormonal effects. Qualifies as a separate organic compound under Chapter 29.
Isoproterenol Hydrochloride
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.
Dobutamine Hydrochloride
Dobutamine hydrochloride is a synthetic catecholamine derivative used primarily as a hormone in cardiac stress testing and heart failure treatment. It falls under HTS 2937.90.2000 due to its classification as a structural analogue of catecholamines with inotropic hormonal effects on beta-1 receptors. As a separate chemically defined compound, it aligns with Chapter 29 hormone provisions.
Levodopa (L-DOPA)
Levodopa, or L-DOPA, is a direct precursor and structural analogue of dopamine, functioning as a catecholamine hormone prodrug in Parkinson's treatment. It is classified in HTS 2937.90.2000 as a catecholamine derivative used primarily for its hormonal effects in the brain. Meets Chapter 29 definition for hormone structural analogues.
Phenylephrine Hydrochloride
Phenylephrine hydrochloride is a synthetic alpha-1 adrenergic agonist and catecholamine structural analogue used primarily as a nasal decongestant and vasopressor. Under HTS 2937.90.2000 for its classification as a catecholamine hormone derivative with hormonal receptor activity. Chemically defined per Chapter notes.