Anhydrous Tetrahydrofuran (THF) Stabilized with BHT from Canada
Anhydrous THF with butylated hydroxytoluene (BHT) stabilizer prevents peroxide formation during storage and transport. Classified under HTS 2932.11.00.00 per Chapter note (f) allowing stabilizers necessary for preservation without changing the compound's nature. Used in Grignard reactions and organometallic synthesis.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include stabilizer concentration in SDS; test for peroxides before import storage
• Pitfall: Failing to declare as peroxide-forming chemical triggers additional DOT scrutiny