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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-mixed or formulated as synthetic pigment intermediate for retail
Formulated coloring matter falls under Chapter 32 heading 3204, taking precedence over Chapter 29 per chapter notes.
If imported as part of a chemical preparation or mixture
Mixtures of chemicals not chemically defined as single compounds are classified in heading 3824.
If containing sugar ethers/esters or other specified derivatives
Certain derivatives explicitly move to heading 2942 per Chapter 29 note 1(c).
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Import Tips & Compliance
• Provide detailed chemical analysis certificates confirming identity and purity to match the exact HTS description
• Include Safety Data Sheets (SDS) and ensure compliance with TSCA for environmental registration
• Avoid misclassification as general pigments (Chapter 32); verify no coloring properties in pure form
Related Products under HTS 2933.99.08.00
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.
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.