Tetraethylene Glycol Dimethyl Ether from China
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 — China → United States
137.5%
Rate breakdown
9903.04.6094.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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