2921.19.61.30 - Chlormethine (INN) (bis(2-chloroethyl)methylamine)

This classification covers chlormethine, also known by its International Nonproprietary Name (INN) and chemical name bis(2-chloroethyl)methylamine. Chlormethine is an organic compound characterized by the presence of amine functional groups and chlorinated ethyl chains. It is specifically an acyclic monoamine derivative with two chloroethyl substituents attached to a methylamine base.

Distinguishing chlormethine from its siblings at this level is crucial for accurate classification. While other categories within 2921.19.61 deal with related haloalkylamines, this specific subcategory is reserved for bis(2-chloroethyl)methylamine. It is differentiated from N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines (2921.19.61.10) by the presence of two chloroethyl groups on the nitrogen, as opposed to one in the former. It is also distinct from bis(2-chloroethyl)ethylamine (2921.19.61.20) by the presence of a methyl group directly attached to the amine nitrogen, and from trichlormethine (2921.19.61.40) by having two chloroethyl groups, not three.

As this classification node is a leaf node within the HTS, there are no further subcategories. Therefore, the focus for classification purposes remains on ensuring the imported or exported good precisely matches the chemical structure and nomenclature of chlormethine (bis(2-chloroethyl)methylamine), as defined by its INN and chemical name, to avoid misclassification with other haloalkylamine derivatives.