Diazo Biphenyl Photoinitiator from Germany
1-Naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4-oxo-ar'-(1-methylethyl)[1,1'-biphenyl]-4-yl ester, a specific diazo compound used in photoresist formulations for electronics manufacturing. Classified under HTS 2927.00.18.00 as an explicitly named diazo compound meeting Chapter 29 organic compound criteria.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Require supplier SDS and NMR spectra confirming exact structure matches the tariff description to avoid reclassification
• These compounds often need REACH registration in EU; prepare US TSCA compliance documentation in advance