Vitamin B12 and its derivatives
Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent. > Vitamins and their derivatives, unmixed: > Vitamin B12 and its derivatives
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2936.26
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.
2936.26.00Cyanocobalamin 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.
2936.26.00Cyanocobalamin 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.
2936.26.00Cyanocobalamin 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.
2936.26.00Fermentation-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.
2936.26.00Hydroxocobalamin 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.
2936.26.00Mecobalamin 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.
2936.26.00Methylcobalamin 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.
2936.26.00Vitamin B12 0.1% Mannitol Adsorbate
Cyanocobalamin adsorbed onto mannitol at 0.1% concentration for improved handling in tablet compression. The mannitol acts as a carrier or excipient, and Vitamin B12 remains the principal active ingredient. This falls under tariff item 2936.26.00, as the mannitol does not render the product suitable for a specific use other than as a vitamin supplement.
2936.26.00Vitamin B12 Reference Standard
Certified cyanocobalamin reference standard with assigned potency for analytical laboratories and pharmacopeia testing. It is a pure Vitamin B12 compound used primarily as a calibration material. As a separate chemically defined compound, it falls under tariff item 2936.26.00, even though its primary use is analytical rather than as a vitamin supplement.