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Paraldehyde USP Grade Acetaldehyde Trimer from Canada

Paraldehyde is the cyclic trimer of acetaldehyde, but pure monomeric acetaldehyde sources are classified under HTS 2912.12.00.00 as acyclic aldehydes without other oxygen functions. This USP grade is used in pharmaceutical formulations as a sedative-hypnotic.

Duty Rate — Canada → United States

15.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Provide FDA Drug Master File if for pharmaceutical end-use to streamline CBP review

Confirm monomeric content via GC-MS analysis to avoid misclassification as cyclic polymer under later headings

Declare as hazardous (UN 2606) with proper ventilation requirements for import manifests