Coumarin
Coumarin is an aromatic lactone compound with a fused benzene ring and α-pyrone ring, classified under HTS 2932.20.4500 as an aromatic heterocyclic lactone with oxygen hetero-atom only. It is commonly used as a fragrance in perfumes and flavoring agent in tobacco products.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If non-aromatic structure
Non-aromatic lactones fall under the subsequent subheading per chapter classification rules.
If put up as retail fragrance preparation
Mixtures containing coumarin as fragrance compound exclude from Chapter 29 per exclusion note (g).
If classified primarily by coumarin-type ketone function
Certain oxygen heterocyclic ketones with lactone characteristics may classify under oxygen function headings.
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 detailed chemical analysis certificates confirming coumarin structure and purity to avoid misclassification as a mixture
• Include Safety Data Sheets (SDS) documenting non-toxicity for fragrance use to prevent hazardous material restrictions
• Verify packaging complies with Chapter 29 note (e) for transport safety without rendering suitable for specific use
Related Products under HTS 2932.20.45.00
Phthalide
Phthalide is a bicyclic aromatic lactone consisting of a benzene ring fused to a five-membered γ-lactone ring, falling under HTS 2932.20.4500 as an aromatic lactone. It serves as an intermediate in pharmaceutical synthesis and dye production.
γ-Butyrolactone (Aromatic Derivatives)
Aromatic-substituted γ-butyrolactones are five-membered lactone rings with aromatic substituents, classified under HTS 2932.20.4500 as aromatic oxygen-heterocyclic lactones. Used as solvents and pharmaceutical intermediates.
Ascorbic Acid Lactone
Ascorbic acid (Vitamin C) contains a five-membered lactone ring with enediol functionality, classified as an aromatic-type heterocyclic lactone under HTS 2932.20.4500. Imported as bulk pharmaceutical and nutritional supplement intermediate.
Phthalolactone Blue Intermediate
Phthalolactone derivatives used as intermediates for blue dyes feature aromatic fused lactone structures, falling under HTS 2932.20.4500. Essential for pigment manufacturing.
Benzofuran-2(3H)-one
Benzofuran-2(3H)-one is a fused benzene-pyrrolidone lactone system classified as aromatic heterocyclic lactone under HTS 2932.20.4500. Used in pharmaceutical and polymer synthesis.
6-Hydroxy coumarin (Umbelliferone)
Umbelliferone (6-hydroxycoumarin) is a phenolic derivative of coumarin lactone with aromatic heterocyclic structure under HTS 2932.20.4500. Used in cosmetics and fluorescent indicators.