Chapter 2936 — Customs Tariff Headings

13-cis Retinoic Acid

> 13-cis retinoic acid is a chemically defined derivative of Vitamin A, used primarily for its vitamin activity in dermatological and pharmaceutical applications. It falls under tariff item 2936.21.00 as an unmixed Vitamin A derivative, consistent with Chapter 29's scope for separate chemically defined organic compounds.

Beta-Carotene 30% Oil Suspension

> Beta-carotene in a 30% oil suspension is a provitamin A, converted to Vitamin A in the body, and used in food fortification. It qualifies under tariff item 2936.21.00 as a natural or synthetic provitamin A, unmixed, and the oil suspension is a normal method of transport per Chapter note 1(e).

Retinaldehyde Powder

> Retinaldehyde powder is the aldehyde form of Vitamin A, a chemically defined derivative used in skincare and supplements. It is classified under tariff item 2936.21.00 as an unmixed Vitamin A derivative, meeting Chapter 29's criteria for separate organic compounds.

Retinol Acetate USP Grade

> Retinol acetate USP grade is a stable ester derivative of Vitamin A, used primarily as a vitamin in pharmaceutical and supplement products. It falls under tariff item 2936.21.00 as an unmixed Vitamin A derivative, consistent with Chapter 29's coverage of chemically defined compounds.

Retinyl Propionate Crystals

> Retinyl propionate crystals are a Vitamin A ester derivative in crystalline form, used for high-potency supplements. It is classified under tariff item 2936.21.00 as an unmixed Vitamin A derivative, meeting Chapter 29's requirements for separate chemically defined organic compounds.

Vitamin A Acetate Beadlets

> Vitamin A acetate beadlets are microencapsulated Vitamin A derivatives with stabilizers necessary for preservation, as permitted by Chapter note 1(f). They fall under tariff item 2936.21.00 as unmixed Vitamin A derivatives, provided the stabilizers do not make them suitable for a specific use.

Vitamin A Palmitate Powder

> Vitamin A palmitate powder is a synthetic retinyl ester derivative used primarily as a Vitamin A supplement in nutritional products. It is classified under tariff item 2936.21.00 as an unmixed Vitamin A derivative, meeting Chapter 29's criteria for chemically defined organic compounds.

Benfotiamine Pharmaceutical Grade

Benfotiamine is a lipid-soluble derivative of thiamine (vitamin B1) with enhanced bioavailability, used primarily in pharmaceutical preparations for neuropathy and other conditions. It is a separate chemically defined organic compound that functions as a vitamin B1 derivative, falling under tariff item 2936.22.00.

Fursultiamine Hydrochloride

Fursultiamine hydrochloride is a disulfide derivative of thiamine with prolonged action, used in treatments for vitamin B1 deficiency. It is a chemically defined organic compound that acts as a vitamin B1 derivative, qualifying for tariff item 2936.22.00.

Prosultiamine Vitamin B1 Derivative

Prosultiamine is a prodrug ester of thiamine with high lipid solubility, used for neurological applications. It is a chemically defined organic compound that serves as a vitamin B1 derivative, fitting under tariff item 2936.22.00.

Thiamine Allyl Disulfide

Thiamine allyl disulfide is a lipophilic derivative of vitamin B1 found in garlic, used in nutritional supplements. It is a chemically defined organic compound that functions primarily as a vitamin B1 derivative, qualifying for tariff item 2936.22.00.

Thiamine HCl API Pharmaceutical Bulk

Thiamine HCl API is an active pharmaceutical ingredient grade thiamine hydrochloride used in compounding and manufacturing. It is a chemically defined organic compound and a derivative of vitamin B1, falling under tariff item 2936.22.00.

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 is a chemically defined organic compound that qualifies under tariff item 2936.22.00 as a vitamin B1 derivative.

Thiamine Mononitrate Powder

Thiamine mononitrate is a stable, non-hygroscopic derivative of vitamin B1 used in food fortification and multivitamin supplements. It is a chemically defined organic compound that functions as a vitamin B1 derivative, fitting under tariff item 2936.22.00.

Thiamine Propyl Disulfide

Thiamine propyl disulfide is a derivative of vitamin B1 with improved bioavailability for oral supplements. It is a chemically defined organic compound that functions primarily as a vitamin B1 derivative, qualifying for tariff item 2936.22.00.

Thiamine Pyrophosphate (TPP) Cofactor

Thiamine pyrophosphate is the biologically active coenzyme form of vitamin B1, essential for carbohydrate metabolism. It is a chemically defined organic compound that functions as a vitamin B1 derivative, falling under tariff item 2936.22.00.

Thiamine Tetrahydrofurfuryl Disulfide (TTFD)

Thiamine tetrahydrofurfuryl disulfide is an allithiamine-type derivative of vitamin B1 with superior transdermal absorption properties. It is a chemically defined organic compound that functions primarily as a vitamin B1 derivative, qualifying for tariff item 2936.22.00.

Bulk Riboflavin for Infant Formula

Bulk Riboflavin (Vitamin B2) in pharmaceutical or FCC grade, intended for fortifying infant formula. It is a chemically defined, unmixed vitamin supplied in bulk for later incorporation into food products, which keeps it in Chapter 29 rather than in food preparations.

Flavin Mononucleotide (FMN)

Flavin Mononucleotide (FMN), a phosphorylated derivative of Riboflavin used primarily as Vitamin B2 in nutritional and biochemical applications. It is a chemically defined derivative of Vitamin B2, falling under the tariff item for Vitamin B2 and its derivatives.

Food Grade Riboflavin Powder

Food-grade Riboflavin powder (FCC grade) used to fortify cereals, beverages, and infant formula. As a synthetic, chemically defined vitamin supplied in bulk, it is classified as an unmixed vitamin under tariff item 2936.23.00, not as a food additive preparation.

High-Purity Riboflavin for Fermentation Media

High-purity Riboflavin for use in fermentation media and biotech production. Despite its industrial end-use, it remains a synthetic, chemically defined vitamin used primarily as Vitamin B2, and is classified under tariff item 2936.23.00.

Microencapsulated Riboflavin

Microencapsulated Riboflavin, where the vitamin is coated for controlled release in supplements. The encapsulation acts as a stabilizer or protective agent, and the product remains a Vitamin B2 derivative under tariff item 2936.23.00, provided the coating does not make it suitable for a specific use other than as a vitamin.

Pharma Grade Riboflavin Granules

Pharma-grade Riboflavin granules (USP) for direct compression in tablet manufacturing. The physical form (granules) does not affect the classification as an unmixed Vitamin B2 under tariff item 2936.23.00.

Riboflavin 5'-Phosphate Sodium

Riboflavin 5'-Phosphate Sodium, a phosphorylated derivative of Vitamin B2 used primarily as a vitamin in pharmaceutical injections and eye drops. As a salt of a Vitamin B2 derivative, it is classified under tariff item 2936.23.00 per Chapter 29 rules for salts of organic compounds.

Riboflavin Acetate Derivative

Riboflavin Acetate Derivative, an acetylated form of Vitamin B2 used in research and specialized nutrition. As an ester derivative of Vitamin B2, it is classified under tariff item 2936.23.00, following the parent vitamin's classification per Chapter 29 ester rules.

Riboflavin Butyrate

Riboflavin Butyrate, an ester derivative of Riboflavin designed for enhanced bioavailability in vitamin supplements. As a derivative used primarily as Vitamin B2, it is classified under tariff item 2936.23.00, consistent with the parent vitamin's classification.

Riboflavin for Cosmetics

High-purity Riboflavin derivative for use in cosmetics, where it acts as a vitamin and colorant. Despite the cosmetic application, it remains a Vitamin B2 derivative and is not excluded to Chapter 32 as a coloring matter, per Chapter 29 note 2(g), so it falls under tariff item 2936.23.00.

Riboflavin Sodium Phosphate

Riboflavin Sodium Phosphate, a water-soluble salt derivative of Riboflavin used in IV and ophthalmic solutions. As a salt of a Vitamin B2 derivative, it is classified under tariff item 2936.23.00 per Chapter 29 note 3(C)(1), which places inorganic salts of organic compounds with the parent compound.

Riboflavin Tetrabutyrate

Riboflavin Tetrabutyrate, a lipophilic ester derivative of Riboflavin for specialized vitamin delivery systems. As an ester of Vitamin B2 used primarily as a vitamin, it is classified under tariff item 2936.23.00, following the parent vitamin's classification per Chapter 29 ester rules.

Riboflavin USP Powder

Riboflavin USP Powder, a pharmaceutical-grade Vitamin B2 powder meeting USP standards, used primarily as a vitamin supplement in tablets and capsules. As a chemically defined, unmixed vitamin, it is classified under tariff item 2936.23.00.

Synthetic Riboflavin 98% Feed Grade

Synthetic Riboflavin 98% Feed Grade, produced for animal nutrition as an unmixed Vitamin B2. It meets Chapter 29 requirements as a reproduced-by-synthesis vitamin used primarily as such, and is classified under tariff item 2936.23.00.

Veterinary Riboflavin Injectable

Veterinary Riboflavin Injectable, a sterile solution of Riboflavin for animal therapeutics, supplied in bulk form. As an unmixed Vitamin B2 solution, it is classified under tariff item 2936.23.00, distinct from finished veterinary medicaments which fall under Chapter 30.

Calcium Pantothenate 98% Feed Grade

Calcium D-pantothenate at 98% purity, a feed-grade form of Vitamin B5 used to fortify animal nutrition. It is a chemically defined derivative of D-pantothenic acid, falling under tariff item 2936.24.00 as an unmixed vitamin derivative.

Dexpanthenol (Provitamin B5)

Dexpanthenol, the alcohol analog of D-pantothenic acid, converts to pantothenic acid in the body and is used in cosmetics and pharmaceuticals. As a derivative of Vitamin B5, it is classified under tariff item 2936.24.00.

DL-Pantolactone

DL-Pantolactone, the cyclic internal ester (lactone) of pantothenic acid, serves as a provitamin B5 intermediate that hydrolyzes to pantothenic acid. It is classified under tariff item 2936.24.00 as a derivative used primarily as a vitamin.

DL-Pantothenic Acid

DL-Pantothenic acid is the racemic mixture of D- and L-isomers of Vitamin B5, used in pharmaceutical and nutritional applications. As a synthetic provitamin explicitly covered by tariff item 2936.24.00, it qualifies as an unmixed vitamin.

D-Panthenyl Alcohol

D-Panthenyl alcohol, a reduced form of pantothenic acid derivative used in hair care and skin moisturizers. It functions primarily as a provitamin B5, qualifying under tariff item 2936.24.00 despite cosmetic applications.

D-Pantothenic Acid Calcium Salt

Calcium D-pantothenate is the calcium salt of D-pantothenic acid (Vitamin B5), a water-soluble vitamin essential for coenzyme A synthesis. This chemically defined derivative is classified under tariff item 2936.24.00.

Pantethine (Pantothenic Acid Dimer)

Pantethine, the dimeric disulfide form of pantothenic acid, is used for cholesterol management and antioxidant support. As a derivative used primarily for vitamin-like metabolic functions, it falls under tariff item 2936.24.00.

Panthenol USP Grade Powder

Pharmaceutical-grade D-panthenol powder meeting USP standards for use in injectables and oral supplements. As a high-purity derivative of pantothenic acid used primarily as a provitamin, it precisely matches tariff item 2936.24.00.

Rac-Pantothenic Acid Sodium Salt

Sodium rac-pantothenate, the sodium salt of DL-pantothenic acid, serves as a water-soluble Vitamin B5 derivative for oral supplements. Classified under tariff item 2936.24.00 per Chapter Note 5(C)(1) for inorganic salts of organic compounds.

4-Pyridoxic Acid Lactone

4-Pyridoxic Acid Lactone is a stable derivative of vitamin B6, formed as a metabolite of pyridoxine. It is classified under this tariff item as a derivative of vitamin B6 used primarily as a vitamin in research and analytical applications.

Pyridoxal 5'-Phosphate

Pyridoxal 5'-Phosphate is the active coenzyme form of vitamin B6, essential for numerous metabolic processes. It is classified under this tariff item as a derivative of vitamin B6 used primarily for its vitamin activity in nutritional supplements and medical treatments.

Pyridoxal Hydrochloride

Pyridoxal Hydrochloride is an aldehyde form of vitamin B6 that exhibits full vitamin activity in metabolic pathways. It is classified under this tariff item as a chemically defined derivative used primarily as a vitamin in nutritional and pharmaceutical applications.

Pyridoxamine Dihydrochloride

Pyridoxamine Dihydrochloride is one of the three natural forms of vitamin B6 with established biological activity. It is classified under this tariff item as a related compound used primarily as a vitamin in nutritional and research applications.

Pyridoxine Dipalmitate

Pyridoxine Dipalmitate is a fat-soluble ester derivative of vitamin B6 used in cosmetic and pharmaceutical formulations for its vitamin activity. It is classified under this tariff item as a derivative used primarily as a vitamin.

Pyridoxine Hydrochloride EP Grade

Pyridoxine Hydrochloride EP Grade is a pure vitamin B6 derivative that meets European Pharmacopoeia standards for medicinal use. It is classified under this tariff item as a chemically defined derivative used primarily as a vitamin in dosage forms.

Pyridoxine Hydrochloride USP

Pyridoxine Hydrochloride USP is the hydrochloride salt of vitamin B6, a chemically defined derivative used primarily as a vitamin in pharmaceutical and nutritional applications. It is classified under this tariff item as a vitamin B6 derivative.

Pyridoxine Methanesulfonate

Pyridoxine Methanesulfonate is a sulfonated derivative of vitamin B6 that retains vitamin activity. It is classified under this tariff item as a derivative of vitamin B6 used primarily as a vitamin, consistent with chapter notes allowing sulfonated derivatives.

Vitamin B6 50% Feed Grade Powder

Vitamin B6 50% Feed Grade Powder contains pyridoxine hydrochloride as the active ingredient, diluted with a carrier for animal nutrition. It is classified under this tariff item when the vitamin remains unmixed and primary, as the carrier does not alter its vitamin nature.

Vitamin B6 Trituration 1% Mannitol

Vitamin B6 Trituration 1% Mannitol dilutes pyridoxine HCl with mannitol for homeopathic and compounding pharmacy use. It is classified under this tariff item as a stabilized vitamin preparation, consistent with chapter note 6(f) allowing added stabilizers for preservation or transport.

Adenosylcobalamin (Cobamamide)

Adenosylcobalamin, also known as cobamamide, is the mitochondrial coenzyme form of Vitamin B12. It is supplied as a pure powder for use in supplement manufacturing and retains full vitamin activity. As a derivative of Vitamin B12 used primarily as a vitamin, it falls under tariff item 2936.26.00.

Cyanocobalamin 1% Feed Grade Premix

This is a cyanocobalamin premix standardized to 1% B12 activity on a maltodextrin carrier, intended for animal nutrition. The Vitamin B12 remains the principal active ingredient, and the maltodextrin acts as a diluent or carrier. It qualifies under tariff item 2936.26.00 as a Vitamin B12 derivative, provided the carrier does not render it suitable for a specific use other than as a vitamin supplement.

Cyanocobalamin Succinate Complex

Cyanocobalamin complexed with succinic acid for enhanced stability in liquid formulations. The succinic acid acts as a stabilizer, which is permitted under Chapter Note 1(f) of Chapter 29. The product retains full B12 vitamin activity and is therefore classified under tariff item 2936.26.00.

Cyanocobalamin USP Powder

Pharmaceutical-grade cyanocobalamin powder meeting USP standards is a synthetic form of Vitamin B12. It is used primarily as a vitamin supplement and is not put up in measured doses or for retail sale. As a separate chemically defined compound, it falls under tariff item 2936.26.00.

Fermentation-Derived Cobamamide

Biosynthetic adenosylcobalamin (cobamamide) produced via microbial fermentation is identical to the natural Vitamin B12 coenzyme. It is a separate chemically defined compound with full vitamin activity. Tariff item 2936.26.00 covers both synthetic and natural-reproduced Vitamin B12 derivatives.

Hydroxocobalamin Acetate

Hydroxocobalamin acetate is a Vitamin B12 derivative used in cyanide poisoning antidotes and B12 deficiency treatments. It is supplied as a sterile powder and is not put up in measured doses. As a derivative of Vitamin B12 used primarily as a vitamin, it falls under tariff item 2936.26.00.

Mecobalamin Crystals

Mecobalamin (methylcobalamin) is a coenzyme form of Vitamin B12 with full B12 activity, supplied as pure crystals for pharmaceutical use. It is a separate chemically defined compound used primarily as a vitamin. Tariff item 2936.26.00 covers this derivative of Vitamin B12.

Methylcobalamin Sodium Salt

Methylcobalamin sodium salt is a water-soluble Vitamin B12 coenzyme derivative for oral and sublingual supplements. As an inorganic salt of an organic compound, it is classified with the organic compound per Chapter Note 5(C)(1). It retains vitamin activity and falls under tariff item 2936.26.00.