Methyl 3-Mercaptopropionate from Canada
Methyl 3-mercaptopropionate is an organo-thiol ester used in polymer synthesis and flavor chemistry. HTS 2930.90.92.51 classification as other organo-sulfur compound with primary thiol functionality. Intermediate for methionine production.
Duty Rate — Canada → United States
3.7%
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
• Refractive index testing confirms identity (1.456-1.458)
• Pungent odor requires sealed secondary containment for customs inspection
• Methionine production declaration may trigger agricultural import review