2921.19.61.10 - N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts

This HTS classification, **2921.19.61.10**, encompasses N,N-dialkylated 2-chloroethylamines where the alkyl groups are specifically methyl, ethyl, or n-propyl. It also includes the protonated salts of these compounds. These are organic chemical compounds characterized by the presence of both an amine group and two chloroethyl functionalities, with specific limitations on the nature of the alkyl substituents on the nitrogen atom.

This category is distinguished from its sibling HTS codes by the precise identity of the alkyl groups attached to the amine nitrogen. For instance, while this code covers N,N-dialkyl-2-chloroethylamines with methyl, ethyl, or n-propyl groups, sibling code 2921.19.61.20 specifically covers bis(2-chloroethyl)ethylamine, which implies the same alkyl groups but the nomenclature can be a point of differentiation. Codes 2921.19.61.30 and 2921.19.61.40 cover more complex nitrogen mustards like chlormethine and trichlormethine, respectively, which have a greater number of chloroethyl substituents or different overall structures not falling under the N,N-dialkyl designation of this specific code. The catch-all sibling 2921.19.61.95 is reserved for any other unlisted variations that don't fit the precise definitions of the preceding codes.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, the classification hinges entirely on accurately identifying the chemical structure of the imported or exported substance and ensuring it precisely matches the definition of N,N-dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts, distinguishing it from other nitrogen mustards or related compounds classified elsewhere.