Perfluorobutyric Acid Methyl Ester
Perfluorobutyric acid methyl ester is the methyl ester of perfluorobutanoic acid, with the formula C3F7COOCH3. The acyclic chain remains fully fluorinated, and the ester is classified as a perhalogenated derivative under tariff item 2903.78.00. It is used as a fluorinated building block in organic synthesis.
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 ester is classified under carboxylic acid esters
Esters of acyclic monocarboxylic acids are covered under heading 29.16, which may be more specific if the ester function is emphasized.
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
• Verify that the esterification does not affect the perhalogenated status of the hydrocarbon chain
• Provide the chemical structure and purity data to CBSA
• Check if the ester is listed under any Canadian substance inventory restrictions
Related Products under Tariff item 2903.78.00
Perfluoro-2-methylpentane
Perfluoro-2-methylpentane is a branched perfluoroalkane with the formula C6F14, where all hydrogen atoms of the acyclic hydrocarbon are replaced by fluorine. As a fully fluorinated acyclic hydrocarbon, it qualifies as a perhalogenated derivative under tariff item 2903.78.00. It is commonly used as an inert immersion cooling fluid in electronics.
Perfluoroadipic Acid
Perfluoroadipic acid is a dicarboxylic acid with the formula HOOC-(CF2)4-COOH, where the acyclic carbon chain is fully fluorinated. It is a perhalogenated derivative of an acyclic hydrocarbon and falls under tariff item 2903.78.00. This compound is used as a monomer in the synthesis of fluoropolymers.
Perfluorobutanoic Acid (PFBA)
Perfluorobutanoic acid (PFBA) is a short-chain perfluorocarboxylic acid with the formula C3F7COOH, where the acyclic hydrocarbon chain is fully fluorinated. It is a perhalogenated derivative of an acyclic hydrocarbon and is classified under tariff item 2903.78.00. PFBA is used in various fluorochemical applications and as a processing aid.
Perfluorodiglyme
Perfluorodiglyme is a perfluorinated diether with the formula CF3(OCF2CF2)2OCF3, where the acyclic structure contains ether linkages and is fully fluorinated. It is classified under tariff item 2903.78.00 as a perhalogenated derivative of an acyclic hydrocarbon. This compound is used as a specialty heat transfer fluid.
Perfluoroglutaric Acid
Perfluoroglutaric acid is a dicarboxylic acid with the formula HOOC-(CF2)3-COOH, where the acyclic carbon chain is fully fluorinated. It is a perhalogenated derivative of an acyclic hydrocarbon and falls under tariff item 2903.78.00. This compound is used as a specialty monomer for fluorinated polyamides.
Perfluorohexanoic Acid (PFHxA)
Perfluorohexanoic acid (PFHxA) is a six-carbon perfluorocarboxylic acid with the formula C5F11COOH, where the acyclic hydrocarbon chain is fully fluorinated. It is a perhalogenated derivative and is classified under tariff item 2903.78.00. PFHxA is used in fluorochemical manufacturing and as a surfactant.