Tetraethylene Glycol Dimethyl Ether from Japan
Tetraethylene glycol dimethyl ether (Tetraglyme) used as a polar aprotic solvent in batteries and extractions. While technically a diether, classified under ether-alcohols broadly in HTS 2909.49.60.00 for glycol ether series. Chemically defined per Chapter notes.
Duty Rate — Japan → United States
5.5%
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
• Distinguish from hemiacetals by providing IR spectrum showing no O-H stretch
• High boiling point (275°C) requires heat-stabilized packaging for transport
• Document <0.1% water content to maintain chemical stability classification