4,4'-Methylenedianiline (MDA) from Germany
4,4'-Methylenedianiline is a reactive aromatic diamine used in the production of high-performance polymers and as a curing agent. Classified under HTS 2921.59.80.90 as 'other' aromatic polyamines and derivatives. Its structure contains two aromatic amine groups connected by methylene bridge.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• MDA requires specific OSHA workplace exposure permits and handling certifications
• Declare exact purity (typically >97%) to maintain Chapter 29 compound classification
• Include CAS number (101-77-9) on all documentation for customs verification