Fenetylline (INN) and its salts
Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives: > Theophylline and aminophylline (theophylline- ethylenediamine) and their derivatives; salts thereof: > Fenetylline (INN) and its salts
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Products classified under HTS 2939.51.00.00
Fenetylline Hydrochloride
Fenetylline hydrochloride is the salt form of fenetylline, a synthetic stimulant alkaloid structurally related to amphetamine and theophylline. It falls under HTS 2939.51.00.00 as a chemically defined derivative of theophylline classified specifically among alkaloids and their salts.
Fenetylline Phosphate
Fenetylline phosphate represents the phosphoric acid salt of fenetylline, used in pharmaceutical research as a theophylline-aminophylline derivative. Classified under HTS 2939.51.00.00 per chapter notes covering salts of specifically named alkaloids.
Fenetylline Sulfate
The sulfate salt of fenetylline (INN), a synthetic central nervous system stimulant alkaloid combining theophylline and amphetamine structures. HTS 2939.51.00.00 explicitly covers this compound and all its salts as per tariff heading.
Fenetylline Mesylate
Fenetylline mesylate is the methanesulfonic acid salt form, valued for improved solubility in pharmaceutical applications. It qualifies under HTS 2939.51.00.00 as chapter notes include all salts of named alkaloids.
Fenetylline Citrate
Citric acid salt of fenetylline, providing pharmaceutical grade stability for research purposes. Covered by HTS 2939.51.00.00 as salts of the specifically named INN fenetylline per alkaloid heading.