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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If saturated acyclic carboxylic acid emphasized
Pentanoic chain could suggest heading 2915, but phenolic function takes later heading priority.
If derivatized into sugar ester analog
Chapter note (c) sends sugar derivatives to 2940, later in numerical order.
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Import Tips & Compliance
• Document stabilizer type/concentration; must prove 'necessary for preservation' per notes
• Use DOT-compliant inner packaging for phenolic acids prone to discoloration
Related Products 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.