8-Anilino-1-naphthalenesulfonic acid (Phenyl Peri acid) and its salts from Canada
Phenyl Peri acid, 8-anilino-1-naphthalenesulfonic acid, features an anilino substitution on naphthylamine with sulfonic acid. Explicitly covered by HTS 2921.45.20.00 as a named derivative salt of aromatic monoamines. Used in specialty dyes requiring peri-position reactivity.
Duty Rate — Canada → United States
15.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Confirm anilino-naphthyl structure via NMR spectra for CBP lab verification if challenged
• Declare salts separately if mixed; note 2(C)(2) requires classification by the later-occurring component
• Ensure no coordination with metals, as note 2(C)(3) affects classification for complexes