Cathine Sulfate

Cathine sulfate is a pharmaceutically pure salt form of cathine (norpseudoephedrine), an ephedra-derived sympathomimetic alkaloid used in drug synthesis. Classified under HTS 2939.43.00.00 as it qualifies as a cathine salt per chapter notes for separate chemically defined organic compounds. Supplied as white crystalline powder for lab or manufacturing use.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+10.0%10%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2939.41.00.00Lower: Free vs 10%

If the base alkaloid ephedrine rather than cathine is the active component

Ephedrine and its salts have a specific subheading earlier in numerical order within the same alkaloid group.

3824.99Higher: 15% vs 10%

If supplied as a chemical mixture or preparation exceeding 0.3% alkaloid content

Mixtures of organic chemicals not fitting pure compound definitions move to Chapter 38 prepared chemical headings.

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Import Tips & Compliance

Submit FDA Drug Master File references and ensure batch testing certificates confirm salt identity via HPLC

Declare exact CAS number (specific to cathine sulfate) on commercial invoice to prevent reclassification

Avoid bulk packaging over 25kg without stabilizers, as chapter notes limit additions to those for safety/transport

Related Products under HTS 2939.43.00.00

Cathine Hydrochloride

Cathine hydrochloride is the hydrochloride salt of cathine, a naturally occurring alkaloid derived from Ephedra plants and reproduced synthetically for pharmaceutical applications. It falls under HTS 2939.43.00.00 as a salt of cathine (INN), specifically classified among alkaloids of ephedra and their salts. This pure chemical compound is used primarily in medicinal formulations.

Pharmaceutical Grade Cathine (S)-Cathine Tartrate

(S)-Cathine tartrate is the tartrate salt of the specific enantiomer of cathine, a synthetic reproduction of the natural ephedra alkaloid, meeting USP standards for drug intermediates. It is classified in HTS 2939.43.00.00 as a cathine salt, adhering to chapter provisions for chemically defined organic compounds and their salts. Used exclusively in controlled pharmaceutical manufacturing.

Cathine Phosphate Powder

Cathine phosphate is a stable phosphate salt of cathine alkaloid, chemically defined and produced synthetically for use as a pharmaceutical reference standard or active ingredient precursor. Falls under HTS 2939.43.00.00 per chapter note (a) for separate organic compounds and their salts. Typically packaged in amber glass for light-sensitive transport.

Research Grade Cathine Bromide

Cathine bromide serves as a research-grade salt of cathine for analytical chemistry and neuroscience studies, derived from synthetic reproduction of the ephedra alkaloid. Classified in HTS 2939.43.00.00 as it meets criteria for chemically pure alkaloid salts without excluded preparations. Supplied in 1g-100g quantities with COA for lab verification.