2931.41.00.00 - Dimethyl methylphosphonate

This HTS category, specifically HTS Code 2931.41.00.00, encompasses dimethyl methylphosphonate. This compound is an organo-phosphorous derivative characterized by the presence of both organic (methyl) and inorganic (phosphorous) components, without any halogen atoms. It falls under the broader classification of "Other organo-inorganic compounds" and specifically within the "Non-halogenated organo-phosphorous derivatives" group, indicating its chemical structure and the absence of chlorine, bromine, or iodine.

Dimethyl methylphosphonate is distinguished from its sibling categories by its precise chemical composition. For instance, 2931.42.00.00 covers dimethyl propylphosphonate, which differs in the alkyl group attached to the phosphorous atom. Similarly, 2931.43.00.00, diethyl ethylphosphonate, varies in both the esterifying alkyl groups and the alkyl group directly bonded to the phosphorous. While other siblings like methylphosphonic acid (2931.44.00.00) represent a different functional group (acid vs. ester), dimethyl methylphosphonate is specifically identified by its two methyl ester groups attached to the methylphosphonyl moiety.

As HTS Code 2931.41.00.00 is a leaf node within the HTS structure, there are no further subcategories branching from this specific classification. Therefore, the classification is definitive for dimethyl methylphosphonate. Import and export operations involving this substance will directly utilize this code, with further breakdowns typically relying on specific purity levels or end-use declarations rather than hierarchical HTS subdivisions.