4,4-Bis(4-hydroxyphenyl)pentanoic acid stabilized crystals from Canada
Crystalline form of 4,4-bis(4-hydroxyphenyl)pentanoic acid with added stabilizer for transport, classified under HTS 2918.29.3900 per chapter note (f). The stabilizer prevents degradation without altering use suitability.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document stabilizer type/concentration; must prove 'necessary for preservation' per notes
• Use DOT-compliant inner packaging for phenolic acids prone to discoloration