Thiamine Propyl Disulfide

Thiamine propyl disulfide (TPD) offers improved bioavailability over thiamine HCl for oral supplements. Classified HTS 2936.22.00.00 as synthetic vitamin B1 derivative for nutritional fortification. Stable in tablet matrices.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFreeFree
🇲🇽MexicoFreeFree
🇨🇦CanadaFreeFree
🇩🇪GermanyFreeFree
🇯🇵JapanFreeFree

Alternative Classifications

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

3824Higher: 15% vs Free

If in proprietary energy drink concentrate formulas

Mixtures with flavorings classify as chemical preparations.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Disulfide bond stability testing required for 36-month shelf life claims

Avoid bulk packaging >25kg to prevent HAZMAT shipping requirements

Related Products under HTS 2936.22.00.00

Thiamine Hydrochloride USP

Thiamine hydrochloride is the most common salt form of vitamin B1, a water-soluble derivative used primarily as a vitamin supplement. It falls under HTS 2936.22.00.00 as a chemically defined derivative of thiamine employed in pharmaceutical and nutritional applications. This synthetic form ensures stability for tablets, injections, and fortified foods.

Thiamine Mononitrate Powder

Thiamine mononitrate is a stable, non-hygroscopic derivative of vitamin B1 widely used in food fortification and multivitamin supplements. Classified under HTS 2936.22.00.00 as a synthetic vitamin B1 derivative for nutritional purposes. Its superior stability makes it ideal for flour enrichment and dry premixes.

Thiamine Pyrophosphate (TPP) Cofactor

Thiamine pyrophosphate is the biologically active coenzyme form of vitamin B1, essential for carbohydrate metabolism. It qualifies under HTS 2936.22.00.00 as a thiamine derivative used primarily as a vitamin in biochemical research and therapeutics. Primarily supplied as lyophilized powder for IV formulations.

Benfotiamine Pharmaceutical Grade

Benfotiamine is a lipid-soluble thiamine derivative with enhanced bioavailability, used in neuropathy treatments. Falls under HTS 2936.22.00.00 as a synthetic vitamin B1 derivative for pharmaceutical applications. Its S-benzoyl structure improves absorption over standard thiamine forms.

Thiamine Tetrahydrofurfuryl Disulfide (TTFD)

TTFD is an allithiamine-type derivative of vitamin B1 with superior transdermal absorption properties. Classified under HTS 2936.22.00.00 as it functions primarily as a vitamin derivative in nutritional supplements. Popular in Japan for energy and cognitive support formulations.

Fursultiamine Hydrochloride

Fursultiamine hydrochloride is a disulfide derivative of thiamine with prolonged action, used in B1 deficiency treatments. It meets HTS 2936.22.00.00 criteria as a derivative used primarily as a vitamin in injectable and oral pharmaceuticals. Converts to active thiamine in vivo.