Riboflavin Tetrabutyrate

Lipophilic ester derivative of Riboflavin for specialized vitamin delivery systems. HTS 2936.23.00.00 applies as a derivative used primarily as Vitamin B2, following Chapter 29 rules for ester classification with parent compound.

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.

2915.60.10.00Higher: 40.5% vs Free

If bulk esters without vitamin declaration

Acyclic alcohol esters classified by acid function unless primary vitamin use established.

3824Higher: 15% vs Free

If with proprietary stabilizers

Complex preparations exceed simple stabilizer allowance of Chapter 29 note (f).

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Import Tips & Compliance

Validate molecular structure documentation; test for solvent residues per Chapter note (e); partner with customs broker experienced in novel vitamin esters

Related Products under HTS 2936.23.00.00

Riboflavin USP Powder

Pharmaceutical-grade Riboflavin (Vitamin B2) powder meeting USP standards, used primarily as a vitamin supplement in tablets and capsules. This chemically defined organic compound falls under HTS 2936.23.00.00 as unmixed Vitamin B2 for nutritional and therapeutic applications. It is synthesized for high purity in human dietary supplements.

Riboflavin 5'-Phosphate Sodium

The phosphorylated derivative of Riboflavin (Vitamin B2), used primarily as a vitamin in pharmaceutical injections and eye drops. Classified under HTS 2936.23.00.00 as a Vitamin B2 derivative meeting chapter requirements for chemically defined organic compounds used as vitamins. Essential for medical applications requiring water-soluble form.

Flavin Mononucleotide (FMN)

FMN, a coenzyme derivative of Riboflavin used primarily as Vitamin B2 in biochemical and nutritional applications. This product qualifies under HTS 2936.23.00.00 as a chemically defined Vitamin B2 derivative for vitamin use, not excluded by Chapter 29 notes on inorganic salts or mixtures.

Riboflavin Butyrate

An ester derivative of Riboflavin designed for enhanced bioavailability in vitamin supplements. Falls under HTS 2936.23.00.00 as a Vitamin B2 derivative used primarily as a vitamin, classified with the parent vitamin per Chapter 29 ester rules.

Synthetic Riboflavin 98% Feed Grade

High-purity synthetic Riboflavin produced for animal nutrition, classified as unmixed Vitamin B2 under HTS 2936.23.00.00. Meets chapter requirements for reproduced-by-synthesis vitamins used primarily as such, suitable for livestock feed fortification.

Pharma Grade Riboflavin Granules

Granulated Riboflavin USP for direct compression in tablet manufacturing, remains unmixed Vitamin B2 under HTS 2936.23.00.00. Physical form does not affect chemical classification as a provitamin/vitamin per chapter scope.