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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If marketed primarily for organo-sulfur therapeutic properties
Sulfur-containing derivatives may classify under organo-sulfur compounds per chapter note 5.
If in transdermal cosmetic patches
Beauty treatment preparations containing TTFD fall under Chapter 33.
If in energy drink powder mixes
Retail food supplement mixtures classify as food preparations.
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Import Tips & Compliance
• Sulfur odor may trigger additional agricultural inspections; include odor profile in SDS
• Declare Japanese Pharmacopeia compliance if applicable for easier acceptance
• Batch testing for furfuryl alcohol residuals required by FDA import alerts
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.
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.
Thiamine Allyl Disulfide
Thiamine allyl disulfide (TAD) is a lipophilic B1 derivative naturally found in garlic, used in nutritional supplements. Classified under HTS 2936.22.00.00 for its primary vitamin function despite organo-sulfur structure. Provides garlic-like bioavailability enhancement.