Oxalacetic Acid Diethyl Ester Sodium Salt Hydrate from Mexico
Oxalacetic acid diethyl ester sodium salt hydrate is the hydrated form of the sodium salt, where water molecules are bound within the crystal structure. Chapter 29 Note 1(d) allows products dissolved in water, and the hydrate is treated as the same compound, so it remains classified under tariff item 2918.30.00.
Duty Rate — Mexico → Canada
0%
Import Tips
• Specify the degree of hydration (e.g
• monohydrate) on the invoice, as this affects net weight and duty calculation
• Confirm the hydrate is stable under transport conditions
• Keep the certificate of analysis showing water content to support classification