1-(3-Sulfo propyl) pyridinium hydroxide from China
A chemically defined heterocyclic compound containing an unfused pyridine ring with a sulfo propyl substituent, classified under HTS 2933.39.08.00 per Chapter 29 notes for separate organic compounds with nitrogen hetero-atoms. Used as an intermediate in pharmaceutical synthesis and dye production.
Duty Rate — China → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide Certificate of Analysis (COA) confirming chemical identity and purity as required for Chapter 29 compounds
• Declare as hazardous material if meeting DOT criteria for corrosive properties; use UN proper shipping name
• Avoid misclassification as sulfonated derivatives under 2933.40 if sulfo group doesn't define principal character