Caffeine Anhydrous Powder
Pure caffeine (1,3,7-trimethylxanthine), a purine alkaloid with a fused pyrimidine-imidazole ring system containing nitrogen hetero-atoms only. Classified under 2933.99.8290 as a heterocyclic compound with nitrogen hetero-atoms only, aromatic, not elsewhere specified. Used in pharmaceuticals, energy drinks, and as a chemical intermediate.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If theophylline or specifically named caffeine salts
Certain named purine derivatives including caffeine salts are specifically provided for in heading 2939.
If imported as formulated mixture with excipients
Mixtures of heterocyclic compounds not chemically defined fall under Chapter 38 prepared binders.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide Certificate of Analysis (COA) verifying purity >98% and absence of contaminants
• Comply with FDA food additive regulations if destined for beverage or supplement use
• Label as 'not for direct food use' if technical grade to avoid misclassification issues
Related Products under HTS 2933.99.82.90
Theobromine Powder
Theobromine (3,7-dimethylxanthine), a xanthine alkaloid with nitrogen-containing fused heterocyclic rings, extracted from cocoa or synthesized. Falls under 2933.99.8290 as 'other' aromatic heterocyclic nitrogen compounds not specifically named elsewhere. Used in pharmaceuticals and as a research chemical.
Paroxetine Hydrochloride
Paroxetine HCl, an antidepressant SSRI with a piperidine fused to tetrahydronaphthalene ring system (nitrogen hetero-atom only). Classified in 2933.99.8290 as other aromatic/modified aromatic heterocyclic compounds with N hetero-atoms. Bulk API for pharmaceutical manufacture.
Imatinib Mesylate
Imatinib mesylate, tyrosine kinase inhibitor with pyrimidine and piperazine rings (N hetero-atoms only), used in leukemia treatment. HTS 2933.99.8290 for bulk API as other aromatic heterocyclic nitrogen compounds. Key oncology pharmaceutical intermediate.
Memantine Hydrochloride
Memantine HCl, NMDA receptor antagonist with adamantane amine structure containing only nitrogen hetero-atoms. Classified 2933.99.8290 as other heterocyclic N compounds, aromatic/modified aromatic. Bulk API for Alzheimer's treatment.
Piperazine Anhydrous
Piperazine, a six-membered heterocyclic ring with two nitrogen hetero-atoms, fully saturated but considered modified aromatic. Classified 2933.99.8290 as other heterocyclic N compounds. Used as anthelmintic and chemical intermediate.
Nicotine Free Base
Nicotine (3-(1-methylpyrrolidin-2-yl)pyridine), bicyclic N-heterocyclic alkaloid with pyridine and pyrrolidine rings. 2933.99.8290 as other aromatic heterocyclic nitrogen compounds. Used in vaping products and NRT.