Pharmaceutical Grade Cinnamic Acid USP
USP-grade cinnamic acid meeting United States Pharmacopeia standards for purity and microbial limits, used as intermediate in drug synthesis. Classified under HTS 2916.39.06.00 as the pure aromatic monocarboxylic acid. Essential for APIs like cinnarizine and hydrocinnamic acid derivatives.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If heterocyclic derivatives predominate chemically
Pharmaceutical intermediates with heterocyclic ring systems shift to nucleotide/sugar derivative headings.
If pre-diluted to pharma standard strengths
Chapter exclusions apply to organo-pharma products put up in measured doses.
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Import Tips & Compliance
• Include USP Certificate of Analysis and FDA Drug Master File reference number on entry documents
• Provide microbial specification certificate (<100 CFU/g total count) required for pharma intermediate classification
• Heavy metal content certification (<10 ppm) prevents classification as contaminated material
Related Products under HTS 2916.39.06.00
Trans-Cinnamic Acid
Trans-cinnamic acid (C9H8O2) is the most common stereoisomer of cinnamic acid, an unsaturated aromatic monocarboxylic acid with a phenyl group attached to the acrylic acid moiety. It falls under HTS 2916.39.06.00 as a specific aromatic monocarboxylic acid derivative. Used primarily in organic synthesis and as a precursor for pharmaceuticals and fragrances.
Cinnamic Acid Flakes
Cinnamic acid in flake form (CAS 140-10-3) for easier handling and melting in industrial applications. This physical form of the pure aromatic monocarboxylic acid remains classified under HTS 2916.39.06.00. Commonly used in perfume manufacturing and polymer additives.
Cinnamic Acid 99% Powder
High-purity (99%) cinnamic acid powder for laboratory and fine chemical applications. This separate chemically defined organic compound fits HTS 2916.39.06.00 as an aromatic monocarboxylic acid. Used in research, flavor synthesis, and UV absorber production.
Industrial Cinnamic Acid Technical Grade
Technical grade cinnamic acid (95-98% purity) for large-scale industrial applications like resin production and polymer modification. Remains classified under HTS 2916.39.06.00 despite lower purity as it meets Chapter 29 definition of chemically defined compound. Cost-effective for bulk chemical processes.
Cinnamic Acid with Stabilizer
Cinnamic acid containing permitted stabilizer levels per Chapter Note (f) for preservation during transport. The added anticaking agent does not render it suitable for specific use beyond general chemical applications. Properly classified under HTS 2916.39.06.00 as stabilized pure compound.
alpha-Methylcinnamic Acid
Alpha-methylcinnamic acid, a substituted derivative of cinnamic acid maintaining the core phenylacrylic acid structure. Classified specifically under HTS 2916.39.06.00 as it chemically qualifies as cinnamic acid per tariff description. Used in specialty fragrance synthesis.