Phthalolactone Blue Intermediate from Germany
Phthalolactone derivatives used as intermediates for blue dyes feature aromatic fused lactone structures, falling under HTS 2932.20.4500. Essential for pigment manufacturing.
Duty Rate — Germany → United States
16.5%
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
• Include dye intermediate synthesis pathway documentation linking lactone structure to end-use
• Certify purity >98% to qualify as separate chemically defined compound per Chapter note (a)
• Avoid colorant additions that trigger Chapter exclusion note (g) for coloring matter