Acefylline Piperazine Salt from Japan
Acefylline piperazine is a theophylline-7-acetic acid piperazine salt, used as a vasodilator. Falls under HTS 2939.59.00.00 per note 5(C)(1) classifying organic salts with parent alkaloid. Stable crystalline form for tablets.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Document piperazine:acefylline molar ratio; stability testing for salt form; FDA NDC exclusion for bulk