Diisooctyl Adipate (DIOA)
Diisooctyl adipate (DIOA) is a secondary plasticizer for low-temperature performance in plastisols and calendered PVC sheeting. As an ester of adipic acid, it is classified under tariff item 2917.12.00, which covers adipic acid esters.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product contains other plasticizers or additives
Formulated plasticizers with additional components may not be classified as pure adipic acid esters.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide the chemical structure to confirm it is an ester of adipic acid
• Ensure the product is not a formulated plasticizer with stabilizers or other additives
• Check if the product is listed on the Canadian Domestic Substances List for import compliance
Related Products under Tariff item 2917.12.00
2-Ethylhexyl Methyl Adipate
2-Ethylhexyl methyl adipate is an asymmetric diester of adipic acid used in specialty coatings. As an ester of adipic acid, it is classified under tariff item 2917.12.00, which covers all esters of adipic acid.
Adipic Acid/2-Ethylhexyl Alcohol Mixed Ester
Mixed adipic esters optimized for plastisol processing, containing adipic acid esterified with 2-ethylhexyl alcohol and other alcohols. These esters are derivatives of adipic acid and fall under tariff item 2917.12.00, which covers adipic acid, its salts and esters.
Adipic Acid Di-n-hexyl Ester
Adipic acid di-n-hexyl ester used as a fast-fusing plasticizer for PVC flooring. This ester of adipic acid is classified under tariff item 2917.12.00, which includes esters of adipic acid, per Chapter 29 Note 1(a) and subheading note 1.
Adipic Acid Flakes for Nylon Production
Adipic acid flakes in crystalline form, optimized for nylon-6,6 synthesis through reaction with hexamethylenediamine. This is a separate chemically defined organic compound (hexanedioic acid) falling under tariff item 2917.12.00 as adipic acid, per Chapter 29 Note 1(a).
Adipic Acid (Hexanedioic Acid)
Adipic acid (hexanedioic acid) as a white crystalline dicarboxylic acid, primarily for nylon production. It is a separate chemically defined organic compound within Chapter 29, classified under tariff item 2917.12.00 for adipic acid.
Adipic Acid Mixed Esters
Mixed esters of adipic acid with different alcohols (e.g., butyl/hexyl) used in specialty lubricants. These esters are classified under tariff item 2917.12.00, which covers adipic acid esters, per Chapter 29 Note 1(a).