Gentisic Acid USP Grade
Gentisic acid (2,5-dihydroxybenzoic acid) is a chemically defined organic compound with a carboxylic acid group and phenolic hydroxy functions, classified under HTS 2918.29.2000 as a specific carboxylic acid with phenol function but without other oxygen function. It is supplied as a white crystalline powder for pharmaceutical and research applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically named as gentisic acid
Other carboxylic acids with phenol function fall under the residual 'other' subheading within the same heading.
If dissolved in water or solvent for transport
Solutions of Chapter 29 compounds for safety/transport fall under mixtures per Chapter note (d)/(e), not pure compounds.
If put up as immunological product
Chapter 29 excludes immunological products of heading 3002, so formulated antisera would classify there instead.
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Import Tips & Compliance
• Provide Certificate of Analysis (CoA) confirming USP purity ≥98% and chemical identity via HPLC or NMR to avoid reclassification
• Declare exact CAS number (490-79-9) and ensure packaging complies with UN 2811 toxic solid regulations for hazardous materials
• Verify no added stabilizers beyond Chapter 29 note (f) limits to prevent misclassification as mixtures under 3824
Related Products under HTS 2918.29.20.00
Ferulic Acid Powder 99%
Ferulic acid (4-hydroxy-3-methoxycinnamic acid) is a hydroxycinnamic acid classified under HTS 2918.29.2000 as its salts are specifically named, with the pure acid following the same principal function. Used as antioxidant in cosmetics and food supplements, it's a white to off-white powder.
Caffeic Acid Pharmaceutical Grade
Caffeic acid (3,4-dihydroxycinnamic acid), a hydroxycinnamic acid and its salts, falls under HTS 2918.29.2000 due to its phenolic carboxylic acid structure without other oxygen functions. Supplied as high-purity powder for drug synthesis and antioxidant applications.
Sodium Ferulate Salt
Sodium ferulate, the sodium salt of ferulic acid (hydroxycinnamic acid salt), is explicitly covered under HTS 2918.29.2000 per the heading description. This water-soluble powder is used in traditional medicine and cardiovascular drug formulations.
Gentisic Acid 98% Technical Grade
Technical grade gentisic acid at 98% purity is the named compound under HTS 2918.29.2000, a dihydroxybenzoic acid with phenol function. Used in industrial synthesis of dyes and pharmaceuticals, supplied in bulk drums.
p-Coumaric Acid Research Grade
p-Coumaric acid (4-hydroxycinnamic acid), a key hydroxycinnamic acid, is classified under HTS 2918.29.2000 matching the heading's specific naming. High-purity research grade for lab use in antioxidant studies.
Sinapic Acid 95% Powder
Sinapic acid (4-hydroxy-3,5-dimethoxycinnamic acid) qualifies as hydroxycinnamic acid under HTS 2918.29.2000. Used in nutraceuticals and as biosynthetic precursor, this 95% powder meets chapter requirements for chemically defined compounds.