4-Formylphenylacetic Acid Methyl Ester USP Grade from China
This USP-grade methyl ester of 4-formylphenylacetic acid is a high-purity, separate chemically defined compound with aldehyde and ester functions. It is classified under 2918.30.00 as a carboxylic acid derivative with aldehyde function, meeting pharmaceutical standards for drug intermediate use.
Duty Rate — China → Canada
0%
Import Tips
• Provide USP-grade certification to demonstrate purity for pharmaceutical use
• Verify the product is not put up in measured doses, which could shift classification to Chapter 30
• Keep records of the chemical structure for tariff verification