2929 - Compounds with other nitrogen function:
Sub-classifications
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2929 10
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2929 1010 00
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2929 1015 00
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2929 1030 00
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2929 1035 00
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2929 90
Overview
Chapter 29 of the Harmonized Tariff Schedule (HTS) delineates organic chemicals. Within this chapter, Heading 2929 specifically addresses compounds characterized by the presence of nitrogen in functional groups other than amines, amides, imides, or their derivatives. This broad category encompasses a diverse range of substances where nitrogen is covalently bonded to carbon and participates in unique chemical structures, such as isocyanates, nitroso compounds, and oximes, among others. The classification here hinges on the identification of these specific nitrogen-containing functional groups.
Unlike sibling categories within Section VI that might cover inorganic chemicals, plastics, or pharmaceutical products, Heading 2929 is exclusively concerned with discrete organic chemical compounds. It differentiates itself from other headings within Chapter 29 by focusing on a distinct set of nitrogen functionalities. For instance, while Heading 2922 covers amino-alcohols and Heading 2924 covers compounds with other amide-function (e.g., carbamates), Heading 2929 captures those compounds where nitrogen exhibits a different mode of functional bonding.
The subcategories within Heading 2929 provide further specificity. Subheading 2929.10 is reserved for isocyanates, a class of compounds highly reactive due to the -N=C=O group. The residual "Other" category, 2929.90, is a catch-all for all other compounds meeting the criteria of Heading 2929 that do not fall under the more specific subheading. This includes a wide array of organic molecules with varied nitrogen functionalities, requiring careful analysis of their chemical structure for accurate classification.