2930.90 - Other:
Sub-classifications
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2930 9010 00
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Overview
This category, HTS Code 2930.90, encompasses a broad range of organo-sulfur compounds that are not specifically enumerated under other headings within Chapter 29. It serves as a residual category for various organic compounds characterized by the presence of sulfur, including those with sulfur bonded to carbon or hydrogen, as well as complex sulfur-containing structures not otherwise classified. Examples can include mercaptans, sulfides, disulfides, thiols, and other sulfur-organic derivatives.
It is crucial to distinguish this residual category from its siblings, such as thiocarbamates and dithiocarbamates (2930.20), thiuram mono-, di-, or tetrasulfides (2930.30), and specific amino acids like methionine (2930.40.00.00). These sibling categories represent distinct chemical structures or functional groups of organo-sulfur compounds that are afforded their own specific classifications due to their unique properties or widespread commercial significance. HTS 2930.90 applies only when a compound does not fit the precise definition of these more specific sibling categories.
Within HTS 2930.90, further subdivision is made to differentiate between aromatic and other organo-sulfur compounds. The "Aromatic" subcategory specifically includes compounds where the sulfur-containing functional group is directly attached to an aromatic ring. The "Other" subcategory then captures all remaining organo-sulfur compounds that do not fall into the aromatic classification or any of the more specifically enumerated sibling categories, providing a comprehensive catch-all for diverse sulfur-organic chemical entities.