Diglyme (Diethylene Glycol Dimethyl Ether) from Japan
Diglyme is a heterocyclic diether with oxygen hetero-atoms in flexible ring conformation, used in organometallic chemistry. HTS 2932.99.90 as other oxygen heterocycles distinguished from acyclic ethers.
Duty Rate — Japan → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Anhydrous grade requires Karl Fischer water analysis (<10 ppm)
• Molecular sieve packaging maintains purity classification
• Distinguish from higher glymes potentially classified as polymers