Theophylline USP Grade
Theophylline USP is a methylxanthine alkaloid used as a bronchodilator in respiratory medications. Classified under HTS 2939.59.00.00 as a theophylline derivative in pure form for pharmaceutical synthesis. Meets USP standards for medicinal applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fenetylline or its salts
Specific amphetamine-theophylline derivatives have dedicated subheadings earlier in numerical order.
If for veterinary medicinal formulations
Bulk medicaments for veterinary use move to Chapter 30 rather than pure alkaloids.
If converted to sugar esters
Sugar derivatives of alkaloids shift to heading 2940 per chapter notes on ester classification.
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Import Tips & Compliance
• Include DEA documentation if precursor concerns arise; provide pharmacopeia compliance certificates; avoid bulk packaging over 25kg to prevent industrial chemical reclassification
Related Products under HTS 2939.59.00.00
Caffeine Anhydrous Powder
Pure caffeine anhydrous is a naturally derived alkaloid reproduced by synthesis, used in pharmaceuticals, energy drinks, and supplements. It falls under HTS 2939.59.00.00 as 'other' theophylline and aminophylline derivatives and their salts, being a purine alkaloid structurally related to theophylline. This classification covers its chemical purity and common industrial applications.
Aminophylline Powder
Aminophylline is theophylline ethylenediamine complex, a soluble derivative used in asthma treatments. Falls under HTS 2939.59.00.00 as specified 'aminophylline (theophylline-ethylenediamine) and their derivatives.' Provided as sterile powder for injection or oral use.
Paraxanthine Pharmaceutical Intermediate
Paraxanthine is a primary caffeine metabolite and theophylline-related dimethylxanthine used in nootropic supplements. Classified in HTS 2939.59.00.00 as 'other' xanthine alkaloid derivatives. Synthetic production for research and cognitive enhancement products.
Theobromine Crystals
Theobromine is a xanthine alkaloid from cocoa, structurally similar to theophylline, used in cosmetics and pharmaceuticals. HTS 2939.59.00.00 covers it as 'other' theophylline derivatives in crystalline form. Common in chocolate-derived supplements.
Dyphylline API
Dyphylline (7-(2,3-dihydroxypropyl)theophylline) is a theophylline derivative bronchodilator for veterinary and human use. Pure active pharmaceutical ingredient under HTS 2939.59.00.00 as 'other' derivative. Water-soluble for syrup formulations.
Proxyphylline Pure Substance
Proxyphylline (7-(2-hydroxypropyl)theophylline) is a soluble theophylline derivative for expectorant medications. HTS 2939.59.00.00 classification for bulk pharmaceutical chemical. Used in cough syrup active ingredient.