Phthalic Anhydride Flakes
Phthalic anhydride flakes are the same chemically defined compound as other physical forms, used in plasticizers and polyester resins. Physical form does not affect classification under this 'other' tariff item for aromatic polycarboxylic anhydrides.
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:
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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
• Confirm the flakes are pure phthalic anhydride without anti-caking agents unless permitted
• Ensure proper labeling and packaging for hazardous goods
• Check if the product is subject to Canadian environmental regulations
Related Products under Tariff item 2917.39.00
2,2-Bis(3,4-dicarboxyphenyl)hexafluoropropane Dianhydride
2,2-Bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride, also known as 4,4'-(hexafluoroisopropylidene)bis(phthalic anhydride), is a separate chemically defined aromatic polycarboxylic anhydride. It is used in polyimides for optical applications and falls under this 'other' tariff item.
4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) 98% purity
4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) at 98% purity is a separate chemically defined aromatic polycarboxylic anhydride with a fluorinated bridge. It is used in high-performance polymers and falls under this 'other' tariff item.
4-Sulfo-1,8-Naphthalic Anhydride
4-Sulfo-1,8-naphthalic anhydride is a sulfonated aromatic polycarboxylic anhydride, a separate chemically defined compound used as an intermediate in fluorescent brighteners and dye synthesis. It falls under this tariff item as an 'other' aromatic polycarboxylic anhydride derivative, not more specifically covered elsewhere in the subheading.
6FDA Monomer -- 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)
6FDA monomer, or 4,4'-(hexafluoroisopropylidene)bis(phthalic anhydride), is a chemically defined aromatic polycarboxylic anhydride used in polyimide synthesis. It is classified under this 'other' tariff item as it is not specifically named in the subheading.
Fluorinated Dianhydride 4,4'-HFIPA
Fluorinated dianhydride 4,4'-HFIPA, also known as 4,4'-(hexafluoroisopropylidene)bis(phthalic anhydride), is a separate chemically defined compound used in gas separation membranes. It falls under this 'other' tariff item as an aromatic polycarboxylic anhydride.
High Purity Naphthalic Anhydride for Dye Synthesis
High-purity naphthalic anhydride (>99%) is a separate chemically defined aromatic polycarboxylic anhydride used in perylene dye synthesis. It is classified under this 'other' tariff item as it is not specifically named elsewhere in the subheading.