3-Amino-3-methyl-1-butyne from China
3-Amino-3-methyl-1-butyne is a specific acyclic monoamine compound featuring an amino group attached to a butyne chain with a methyl substituent. It falls under HTS 2921.19.31.00 as one of the explicitly named amine-function compounds in this subheading. This chemical is used as an intermediate in pharmaceutical synthesis and organic reactions.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide Safety Data Sheets (SDS) and Certificate of Analysis confirming purity and identity as 3-Amino-3-methyl-1-butyne to match HTS 2921.19.31.00 exactly
• Declare as a specific named compound; mislabeling as 'other amines' risks reclassification to higher-duty 2921.19.90
• Comply with TSCA registration and ensure packaging meets UN hazardous material standards for transport