2934.30.18.00 - Ethyl (1H-phenothiazin-2,4,1)carbamate

This category, HTS code 2934.30.18.00, specifically classifies Ethyl (1H-phenothiazin-2,4,1)carbamate. This compound is characterized by the presence of a phenothiazine ring system, as defined in the parent categories, with an attached ethyl carbamate functional group at the specified positions. The core of this classification lies in identifying this precise chemical structure.

Distinguishing this classification from its sibling, 2934.30.12.00, is crucial. While both fall under compounds containing a phenothiazine ring system, 2934.30.12.00 is specifically for 2-(Trifluoromethyl)phenothiazine, which has a trifluoromethyl substituent. HTS 2934.30.18.00, however, covers compounds where the defining substituent is the ethyl carbamate group, not a trifluoromethyl group. The "Other" sibling category would encompass phenothiazine derivatives that do not fit the specific descriptions of 2934.30.12.00 or 2934.30.18.00.

As this is a leaf node, there are no further subcategories under HTS code 2934.30.18.00. Classification is definitively determined by the presence of the Ethyl (1H-phenothiazin-2,4,1)carbamate structure itself. Importers and exporters should ensure that the chemical identity of their product precisely matches this description to ensure correct customs declaration and avoid misclassification.