Tinuvin 783 UV Absorber (C7-C9 Alkyl Esters) from Mexico
3-(2H-Benzotriazol-2-yl)-5-(tert-butyl)-4-hydroxybenzene propanoic acid, C7-C9 branched or linear alkyl esters, commonly known as Tinuvin 783, is a hindered amine light stabilizer (HALS) used in plastics and coatings. It is explicitly listed under HTS 2933.99.08.00 as an aromatic heterocyclic compound with nitrogen hetero-atoms. This UV absorber protects polymers from photodegradation in applications like automotive coatings.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Submit manufacturer specifications confirming exact chemical match to HTS description including alkyl chain length
• Ensure proper UN-approved packaging for liquid stabilizers and include flash point data