2921.19.61.40 - Trichlormethine (INN) (tris(2-chloroethyl)amine)

This HTS classification covers trichlormethine, also known by its International Nonproprietary Name (INN) as tris(2-chloroethyl)amine. Trichlormethine is an organic chemical compound characterized by its amine functional group and the presence of three 2-chloroethyl substituents. It is important to note that this specific entry is reserved for trichlormethine itself, distinct from other related chloroethylamine derivatives.

This category is differentiated from its sibling categories by the precise chemical structure and the number of chloroethyl groups attached to the nitrogen atom. Specifically, it excludes compounds with fewer than three chloroethyl groups, such as N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines (2921.19.61.10), Bis(2-chloroethyl)ethylamine (2921.19.61.20), and Chlormethine (bis(2-chloroethyl)methylamine) (2921.19.61.30). The classification here is highly specific to the tris(2-chloroethyl)amine molecule.

As this classification represents a leaf node within the HTS, there are no further subcategories to introduce. The scope of 2921.19.61.40 is definitively limited to trichlormethine, leaving no room for further subdivision at this level. Classification decisions for this code will rely on confirming the chemical identity of the imported substance as tris(2-chloroethyl)amine.