4,4-Bis(4-hydroxyphenyl) pentanoic acid; and 3,5,6-Trichlorosalicylic acid
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: > Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives: > Other: > 4,4-Bis(4-hydroxyphenyl) pentanoic acid; and 3,5,6-Trichlorosalicylic acid
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2918.29.39.00
4,4-Bis(4-hydroxyphenyl) pentanoic acid
This is a specific carboxylic acid with phenol function, explicitly named in HTS 2918.29.3900. It features two 4-hydroxyphenyl groups attached to the 4-position of pentanoic acid, classifying it under carboxylic acids with phenol function but without other oxygen functions. Used primarily as a pharmaceutical intermediate.
3,5,6-Trichlorosalicylic acid
A halogenated derivative of salicylic acid, specifically listed under HTS 2918.29.3900 as a carboxylic acid with phenol function. The trichloro substitution on the aromatic ring qualifies it under halogenated phenolic carboxylic acids without other oxygen functions. Commonly used in dye synthesis and pharmaceutical intermediates.
Bisphenol A bis(4-hydroxyphenyl)propane derivative acid
A structural analog of 4,4-bis(4-hydroxyphenyl)pentanoic acid used in polymer synthesis, classified under the specific naming in HTS 2918.29.3900. It maintains the phenolic carboxylic acid structure without additional oxygen functions. Applied in specialty resin production.
Technical grade 3,5,6-Trichlorosalicylic acid 98%
Industrial-grade 3,5,6-trichlorosalicylic acid with 98% purity and minor impurities, still classified under HTS 2918.29.3900 per chapter note (a) allowing impurities. Used in azo dye coupler production and herbicide intermediates.
4,4-Bis(4-hydroxyphenyl)pentanoic acid stabilized crystals
Crystalline form of 4,4-bis(4-hydroxyphenyl)pentanoic acid with added stabilizer for transport, classified under HTS 2918.29.3900 per chapter note (f). The stabilizer prevents degradation without altering use suitability.