Tropic Acid
Tropic acid serves as key intermediate for anticholinergic pharmaceuticals, featuring the alcohol-carboxylic acid structure of 2918.19.90.00.
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
Ring structures trigger Chapter 29 heterocyclic heading.
If diagnostic or research reagent kits
Composite lab preparations classified separately.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide DEA precursor documentation if applicable for controlled substance synthesis
• Include synthesis pathway documentation to justify pharmaceutical intermediate status
• Verify against hormone classification exclusions
Related Products under HTS 2918.19.90.00
Lactic Acid
Lactic acid (2-hydroxypropanoic acid) is a carboxylic acid containing a hydroxyl group, classifying it under HTS 2918.19.90.00 as a carboxylic acid with alcohol function but without other oxygen functions. It is commonly used in food preservation, cosmetics, and biodegradable plastics.
Hydroxyacetic Acid (Glycolic Acid)
Glycolic acid is the smallest alpha-hydroxy acid with both carboxylic and alcohol functions, fitting HTS 2918.19.90.00 criteria. Widely used in skincare exfoliants and chemical peels at concentrations up to 70%.
Tartronic Acid
Tartronic acid (2-hydroxypropanedioic acid) contains both carboxylic acid and alcohol functions without additional oxygen groups, qualifying for 2918.19.90.00. Used in pharmaceutical intermediates and biochemical research.
Glyceric Acid
Glyceric acid features a carboxylic group with adjacent hydroxyl functionality, classified under 2918.19.90.00. Applied in sugar chemistry research and as a chiral building block.
2-Hydroxybutyric Acid
This alpha-hydroxy acid contains the required carboxylic-alcohol structure for 2918.19.90.00 classification. Used in polymer synthesis and metabolic studies.
Mandelic Acid
Mandelic acid (alpha-hydroxyphenylacetic acid) qualifies under 2918.19.90.00 with its alpha-hydroxy carboxylic structure. Common in pharmaceutical synthesis and skincare.