Other
Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives. > Alkaloids of rye ergot and their derivatives; salts thereof: > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2939.69
Dihydroergotamine Mesylate
Dihydroergotamine mesylate is a hydrogenated derivative of ergotamine, a natural alkaloid derived from rye ergot (Claviceps purpurea). It is a separate chemically defined organic compound used in pharmaceutical preparations for acute migraine treatment. As a derivative of rye ergot alkaloids, it falls under tariff item 2939.69.00 as 'Other' alkaloids of rye ergot and their derivatives.
2939.69.00Ergoclavine
Ergoclavine is a natural clavine-type alkaloid isolated from rye ergot fungi, studied for its neuroactive properties. It is a separate chemically defined organic compound, meeting the scope of chapter 29. As an alkaloid of rye ergot not elsewhere specified, it is classified under tariff item 2939.69.00 as 'Other'.
2939.69.00Ergocornine Base
Ergocornine base is a natural rye ergot alkaloid isolated for pharmaceutical synthesis and neuropharmacology studies. It is a separate chemically defined organic compound, and as a base form (not a salt or ester), it is classified under tariff item 2939.69.00 as 'Other' rye ergot alkaloids.
2939.69.00Ergocristine Phosphate
Ergocristine phosphate is a natural alkaloid extracted from rye ergot sclerotia, used in research and as a dopamine receptor agonist precursor. As a salt of a rye ergot alkaloid, it is classified under tariff item 2939.69.00 as 'Other', consistent with chapter note 5(C)(1) for inorganic salts of organic compounds.
2939.69.00Ergocristinine
Ergocristinine is an isolysergic acid derivative from rye ergot, used in alkaloid research. It is a separate chemically defined organic compound, and as a derivative of rye ergot alkaloids, it falls under tariff item 2939.69.00 as 'Other'. It is distinguished from lysergic acid amide (heading 2939.41) by its specific structure.
2939.69.00Ergometrine Maleate
Ergometrine maleate (ergonovine maleate) is an ergot alkaloid derivative used to control postpartum hemorrhage. As a salt of a rye ergot alkaloid, it is classified under tariff item 2939.69.00 as 'Other', consistent with chapter note 5(C)(1) for salts of organic compounds.
2939.69.00Ergosine Hydrobromide
Ergosine hydrobromide is a lesser-known rye ergot alkaloid salt used in biochemical studies. As a hydrobromide salt of a rye ergot alkaloid, it is classified under tariff item 2939.69.00 as 'Other', per chapter note 5(C)(1) for inorganic salts of organic compounds.
2939.69.00Ergostine
Ergostine represents ergoline alkaloids from rye ergot used in synthetic chemistry. As a base form without salts or esters, it is classified under tariff item 2939.69.00 as 'Other' rye ergot alkaloids, meeting the purity standards of chapter 29 notes.
2939.69.00Ergotamine Tartrate
Ergotamine tartrate is a semi-synthetic derivative of ergot alkaloids from rye ergot (Claviceps purpurea), used primarily for treating migraines. As a salt of a rye ergot alkaloid, it is classified under tariff item 2939.69.00 as 'Other', per chapter note 5(C)(1) for salts of organic compounds.
2939.69.00Isoergosine
Isoergosine is an isomer of ergosine from rye ergot, used in stereochemistry studies. As a separate chemically defined organic compound and an isomer of a rye ergot alkaloid, it falls under tariff item 2939.69.00 as 'Other', consistent with chapter note 1(b) for mixtures of isomers.