4-Phenylbutyric Acid Anhydride
4-Phenylbutyric acid anhydride is the symmetric anhydride of 4-phenylbutyric acid, classified with the parent aromatic monocarboxylic acid. It is used as an acylation agent 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 anhydride is not derived from butanoic acid
Other saturated acyclic monocarboxylic acid anhydrides fall under this heading.
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
• Declare the product as an anhydride of butanoic acid and provide the chemical structure on the commercial invoice
• Ensure proper labeling for hazardous materials if the anhydride is moisture-sensitive
• Keep safety data sheets available for CBSA inspection
Related Products under Tariff item 2915.60.00
2-Ethylbutyryl Chloride
2-Ethylbutyryl chloride is the acid chloride of 2-ethylbutanoic acid, a branched butanoic acid derivative. It is classified under this tariff item as a halogenated derivative of butanoic acid and used as a synthetic intermediate for esters.
2-Methylbutyric Acid
2-Methylbutyric acid is a branched C5 saturated acyclic monocarboxylic acid, classified as a butanoic acid derivative. It is employed in cheese flavor reproduction and pharmaceutical applications.
4-(4-Methylphenyl)butyric Acid
4-(4-Methylphenyl)butyric acid is an aromatic butanoic acid derivative with a para-methyl substituted phenyl ring. It is used as an intermediate in the synthesis of non-steroidal anti-inflammatory drugs.
4-Phenylbutyric Acid
4-Phenylbutyric acid is a saturated acyclic monocarboxylic acid with a phenyl substituent on the butanoic acid chain. It is classified under this tariff item as an aromatic derivative of butanoic acid.
4-Phenylbutyryl Chloride
4-Phenylbutyryl chloride is the acid chloride derivative of 4-phenylbutanoic acid, classified with the parent aromatic acid under Chapter 29 note 5(E). It is a reactive intermediate for ester and amide synthesis.
Benzyl 4-Phenylbutyrate
Benzyl 4-phenylbutyrate is the benzyl ester of 4-phenylbutyric acid, classified with the parent aromatic acid under Chapter 29 ester rules. It is used as a protecting group reagent in peptide synthesis and pharmaceutical manufacturing.