Tinuvin 292 Liquid UV Stabilizer
2-(2H-Benzotriazol-2-yl)-6-dodecyl-4-methyl phenol in liquid form (branched and linear), known as Tinuvin 292, is a benzotriazole-based UV absorber explicitly covered by HTS 2933.99.08.00. This aromatic heterocyclic compound protects clear coatings and adhesives from UV degradation. Its liquid form distinguishes it for easy incorporation in formulations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by phenolic function ignoring heterocyclic nature
Phenols fall under 2907, but heterocyclic N-compounds take precedence in later Chapter 29 headings.
If for formulated liquid stabilizer blends
Prepared additives and mixtures move to Chapter 38 per exclusions in Chapter 29 notes.
If non-aromatic heterocyclic compound
Non-aromatic versions classified earlier in 2933.99.22 rather than aromatic .9700 basket.
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Import Tips & Compliance
• Clearly indicate 'liquid form' on commercial invoice and provide viscosity/flash point documentation
• Comply with DOT hazardous material regulations for liquid chemical imports
• Prevent reclassification as phenol derivative (2907) by emphasizing heterocyclic benzotriazole structure
Related Products under HTS 2933.99.08.00
Acetoacetyl-5-Amino Benzimidazolone
Acetoacetyl-5-amino benzimidazolone is a specific aromatic heterocyclic compound with nitrogen hetero-atoms used primarily as an intermediate in the synthesis of azo pigments and dyes. It falls under HTS 2933.99.08.00 due to its explicit listing as a heterocyclic compound with nitrogen hetero-atom(s) only, classified as aromatic under this precise subheading. This chemical is essential for producing high-performance pigments in coatings and inks.
1,3,3-Trimethyl-2-Methyleneindoline
1,3,3-Trimethyl-2-methyleneindoline is an indoline derivative explicitly listed under HTS 2933.99.08.00 as an aromatic heterocyclic compound with nitrogen hetero-atoms. It serves as a key intermediate in the production of photochromic dyes and optical brighteners. The compound's methylene group enables specific reactivity in dye synthesis.
Lowilite 27 UV Absorber C7-C9 Esters
3-(2H-Benzotriazol-2-yl)-5-(tert-butyl)-4-hydroxybenzene propanoic acid C7-C9 esters (Lowilite 27) is a liquid UV stabilizer explicitly under HTS 2933.99.08.00. This benzotriazole derivative protects polyolefins and engineering plastics from light-induced degradation. It's supplied as branched/linear alkyl esters for broad solubility.
Tinuvin 783 UV Absorber (C7-C9 Alkyl Esters)
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.
Photochromic Dye Intermediate Indoline
1,3,3-Trimethyl-2-methyleneindoline serves as a photochromic dye intermediate explicitly listed in HTS 2933.99.08.00. This nitrogen-heterocyclic compound reacts with spiropyrans to create color-changing materials for lenses and inks. Its aromatic indoline structure defines its Chapter 29 classification.