Undecylenic Acid
Undecylenic acid is a mono-unsaturated acyclic monocarboxylic acid with 11 carbons and terminal double bond, used in antifungal treatments. Classified in HTS 2916.19.30.00 as 'other' unsaturated acyclic monocarboxylic acids. Derived from castor oil pyrolysis.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 6.1% | +25.0% | 31.1% |
| 🇲🇽Mexico | 6.1% | — | 6.1% |
| 🇨🇦Canada | 6.1% | — | 6.1% |
| 🇩🇪Germany | 6.1% | — | 6.1% |
| 🇯🇵Japan | 6.1% | — | 6.1% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If saturated undecanoic acid
Corresponding saturated analog classifies under saturated acids heading.
If in formulated cosmetic preparations
When incorporated into finished cosmetic products, moves to Chapter 33.
If as sugar undecylenate esters
Esters with sugars classify under sugar derivatives per Chapter 29 ester rules.
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Import Tips & Compliance
• EPA/TSCA notification if antimicrobial claim; provide synthesis method documentation
• Verify no conjugation of double bonds to avoid essential oil classification
Related Products under HTS 2916.19.30.00
Linoleic Acid
Linoleic acid is a polyunsaturated omega-6 fatty acid with two double bonds in an 18-carbon chain, qualifying as an unsaturated acyclic monocarboxylic acid. Classified under HTS 2916.19.30.00 per Chapter 29 notes for separate chemically defined organic compounds. Essential in nutritional supplements and skin care formulations.
Sorbic Acid
Sorbic acid is an unsaturated acyclic monocarboxylic acid (hexa-2,4-dienoic acid) used primarily as a food preservative. It qualifies under HTS 2916.19.30.00 as a chemically defined unsaturated straight-chain monocarboxylic acid per Chapter 29 note (a). Effective against mold and yeast in food applications.
10-Undecenoic Acid
10-Undecenoic acid, identical to undecylenic acid, is an 11-carbon unsaturated acyclic monocarboxylic acid with antifungal properties. HTS 2916.19.30.00 applies as it fits the chemical definition excluding specific enumerated acids. Common in pharmaceutical creams.
Myristoleic Acid
Myristoleic acid is a C14:1 omega-5 mono-unsaturated acyclic monocarboxylic acid found in fish oils. It qualifies under HTS 2916.19.30.00 as a separate chemically defined unsaturated acid. Used in biochemical research and cosmetics.
Palmitoleic Acid
Palmitoleic acid (C16:1 n-7) is an unsaturated acyclic monocarboxylic acid prevalent in macadamia oil. Classifies under HTS 2916.19.30.00 meeting Chapter 29 purity and definition criteria. Applied in skincare for moisturizing properties.
Alpha-Eleostearic Acid
Alpha-eleostearic acid is a conjugated tri-unsaturated acyclic monocarboxylic acid from tung oil. Despite conjugation, it remains classified under HTS 2916.19.30.00 as an unsaturated acyclic acid. Used in drying oils and polymers.