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Theophylline USP Grade from China

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.

Duty Rate — China → United States

0%

Rate breakdown

9903.05.860%Universal product exemption (U.S. note 52(b))

Import Tips

Include DEA documentation if precursor concerns arise; provide pharmacopeia compliance certificates; avoid bulk packaging over 25kg to prevent industrial chemical reclassification