2909.44.01.10 - Monomethyl ethers of ethylene glycol or of diethylene glycol

This HTS category, HTS Code 2909.44.01.10, specifically classifies monomethyl ethers derived from either ethylene glycol or diethylene glycol. These compounds are characterized by the presence of a single methyl group attached via an ether linkage to the ethylene or diethylene glycol structure. They are often utilized as solvents, humectants, or chemical intermediates in various industrial applications. The key defining characteristic for inclusion in this sub-heading is the ether linkage involving a methyl group and the parent glycol structure.

Distinguishing this sub-heading from its sibling, 2909.44.01.50 ("Other"), is crucial for accurate classification. While the sibling category encompasses a broader range of ether-alcohols that do not fall under more specific classifications within heading 2909.44, this specific sub-heading is reserved for those compounds where the ether substituent is exclusively a methyl group attached to either ethylene glycol or diethylene glycol. Other ether-alcohols, such as those with ethyl or propyl ether groups, or those derived from glycols other than ethylene or diethylene glycol, would be classified elsewhere.

As this is a leaf node in the HTS classification system, there are no further subcategories to introduce. Therefore, the focus for classification purposes remains on precisely identifying whether a product meets the criteria of being a monomethyl ether of ethylene glycol or diethylene glycol. Common examples that would fall into this category include 2-methoxyethanol (ethylene glycol monomethyl ether) and 2-(2-methoxyethoxy)ethanol (diethylene glycol monomethyl ether). The absence of further subdivisions means that any compound fitting the description of a monomethyl ether of these specific glycols is directly classified under this code.