Chapter 2936230000 — Customs Tariff Headings
Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives. > Alkaloids of rye ergot and their derivatives; salts thereof: > Vitamin B2 and its derivatives
Duty Rate (from China)
Products classified under Tariff item 2936.23.00.00
Bulk Riboflavin for Infant Formula
Bulk Riboflavin (Vitamin B2) in pharmaceutical or FCC grade, supplied unmixed for later incorporation into infant formula. It is a separate chemically defined organic compound, and its bulk form does not render it particularly suitable for a specific use, so it remains classified under tariff item 2936.23.00.
2936.23.00Flavin Mononucleotide (FMN)
Flavin Mononucleotide (FMN), a chemically defined derivative of Riboflavin used as Vitamin B2 in nutritional applications. As a derivative of Vitamin B2, it is classified under tariff item 2936.23.00, which covers the vitamin and its derivatives.
2936.23.00Food Grade Riboflavin Powder
Food grade Riboflavin powder for fortifying cereals, beverages, and infant formula. It is a synthetic, chemically defined Vitamin B2 compound, and as an unmixed vitamin, it falls under tariff item 2936.23.00.
2936.23.00High-Purity Riboflavin for Fermentation Media
High-purity Riboflavin for fermentation media, used as a nutrient in biotech production. Despite the industrial end-use, it remains a separate chemically defined Vitamin B2 compound, classified under tariff item 2936.23.00.
2936.23.00Microencapsulated Riboflavin
Microencapsulated Riboflavin for controlled release in supplements, where the principal compound remains Vitamin B2. The encapsulation acts as a stabilizer, which is permitted under Chapter 29 Note 1(f), so it remains under tariff item 2936.23.00.
2936.23.00Pharma Grade Riboflavin Granules
Pharma grade Riboflavin granules for direct compression in tablet manufacturing. The granulated physical form does not affect the chemical classification as an unmixed Vitamin B2 compound, so it falls under tariff item 2936.23.00.
2936.23.00Riboflavin 5'-Phosphate Sodium
Riboflavin 5'-Phosphate Sodium, a phosphorylated derivative of Riboflavin used as Vitamin B2 in pharmaceutical injections and eye drops. As a derivative of Vitamin B2, it is covered by tariff item 2936.23.00.
2936.23.00Riboflavin Acetate Derivative
Riboflavin Acetate Derivative, an acetylated form of Riboflavin for research and specialized nutrition. As an ester derivative of Vitamin B2, it is classified under tariff item 2936.23.00, which covers the vitamin and its derivatives.
2936.23.00Riboflavin Butyrate
Riboflavin Butyrate, an ester derivative of Riboflavin designed for enhanced bioavailability in vitamin supplements. As a derivative of Vitamin B2 used primarily as a vitamin, it falls under tariff item 2936.23.00.
2936.23.00Riboflavin for Cosmetics
High-purity Riboflavin derivative for skincare formulations, acting as a vitamin and colorant. It remains classified under tariff item 2936.23.00 as a Vitamin B2 derivative, and is not excluded to Chapter 32 as a coloring matter per Chapter 29 Note 2(g).
2936.23.00Riboflavin Sodium Phosphate
Riboflavin Sodium Phosphate, a water-soluble salt derivative of Riboflavin for IV and ophthalmic solutions. As a salt of a Vitamin B2 derivative, it is classified with the parent vitamin under tariff item 2936.23.00 per Chapter 29 Note 5(C)(1).
2936.23.00Riboflavin Tetrabutyrate
Riboflavin Tetrabutyrate, a lipophilic ester derivative of Riboflavin for specialized vitamin delivery systems. As a derivative used primarily as Vitamin B2, it is classified under tariff item 2936.23.00 following Chapter 29 ester classification rules.
2936.23.00Riboflavin USP Powder
Pharmaceutical-grade Riboflavin USP powder used primarily as a vitamin supplement in tablets and capsules. As a separate chemically defined organic compound, it falls under tariff item 2936.23.00 as unmixed Vitamin B2.
2936.23.00Synthetic Riboflavin 98% Feed Grade
Synthetic Riboflavin 98% feed grade for animal nutrition, classified as unmixed Vitamin B2 under tariff item 2936.23.00. It meets chapter requirements as a reproduced-by-synthesis vitamin used primarily as such.
2936.23.00Veterinary Riboflavin Injectable
Veterinary Riboflavin injectable in bulk form, a sterile solution for animal therapeutics. As a bulk unmixed Vitamin B2 solution, it is classified under tariff item 2936.23.00, distinct from finished veterinary medicaments.