2-Carboxy-3-Naphthol
2-Carboxy-3-naphthol is the IUPAC name for 3-hydroxy-2-naphthoic acid, fitting HTS 2918.29.2500 as a phenolic carboxylic acid. It acts as a critical coupler in fast dye production for cotton and wool textiles.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If halogenated naphthol derivatives
Chapter notes include halogenated versions in earlier oxygen-function headings.
If with sulfur directly linked to carbon
Organo-sulfur compounds per heading 2930 take precedence if sulfur present.
If for retail laboratory use packs
Retail preparations fall outside pure compounds into mixtures chapter.
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Import Tips & Compliance
• Cross-reference synonyms in HTS rulings database; provide molecular formula C11H8O3 confirmation
• Prevent confusion with naphthol AS derivatives
Related Products under HTS 2918.29.25.00
3-Hydroxy-2-Naphthoic Acid
3-Hydroxy-2-naphthoic acid is a chemically defined organic compound with a carboxylic acid group and a phenolic hydroxy group on a naphthalene ring, falling under HTS 2918.29.2500 as specified. It serves as a key intermediate in organic synthesis, particularly for azo dye production and pharmaceutical precursors.
3-Hydroxy-2-Naphthoic Acid Technical Grade
Technical grade 3-hydroxy-2-naphthoic acid contains minor impurities but remains a separate chemically defined organic compound per Chapter 29 note (a), classified under HTS 2918.29.2500. It is widely used in textile dye coupling and agrochemical synthesis.
2-Naphthol-3-Carboxylic Acid Powder
Also known as 2-naphthol-3-carboxylic acid, this powdered form is explicitly 3-hydroxy-2-naphthoic acid under HTS 2918.29.2500 due to its carboxylic acid with phenol function. It functions as a coupler in the manufacture of acid dyes for textiles.
3-Hydroxy-2-Naphthoic Acid Flake Form
Flake-form 3-hydroxy-2-naphthoic acid is the specified compound of HTS 2918.29.2500, a carboxylic acid with phenol function used in pigment and pharmaceutical intermediate production. Its physical form does not affect chemical classification under Chapter 29.
Beta-Naphthol-3-Carboxylic Acid
Beta-naphthol-3-carboxylic acid is synonymous with 3-hydroxy-2-naphthoic acid, directly matching HTS 2918.29.2500 for carboxylic acids with phenol function. It is essential for synthesizing naphthol AS dyes in the textile industry.
3-Hydroxy-2-Naphthoic Acid Stabilized
Stabilized 3-hydroxy-2-naphthoic acid includes necessary anticaking agents for preservation, permitted under Chapter 29 note (f) and classified in HTS 2918.29.2500. Used primarily in dye manufacturing and as a pharmaceutical building block.