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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If only one phenolic hydroxy group
Salicylic acid and derivatives (mono-phenol function) classify earlier in 2918.21, before multi-phenol.
If with added stabilizer beyond Chapter limits
Products with added stabilizers for preservation exceeding note (f) become mixtures of 3824.
If formulated as fertilizer additive
Chapter excludes urea/fertilizer products (3105); plant growth formulations shift classification.
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Import Tips & Compliance
• Submit stability data showing no degradation products; declare moisture <0.5% to confirm chemical purity
• Comply with DEA precursor chemical reporting if used in synthesis pathways, though not listed substance
• Use industrial packaging only; retail packs risk 3824 classification as lab reagent mixtures
Related Products under HTS 2918.29.20.00
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.
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.
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.