9902.03.53 - N,N-Diethyl-1,3-propanediamine (CAS No. 104-78-9) (provided for in subheading 2921.29.00)

This HTS category, 9902.03.53, specifically covers N,N-Diethyl-1,3-propanediamine (CAS No. 104-78-9). While this substance is classified under heading 2921.29.00 within the organic chemicals section of the HTS, its presence in Chapter 99 signifies a temporary or special import classification. This indicates that its importation is subject to specific provisions, likely temporary modifications, trade agreement legislation, or import restrictions as proclaimed under Section 22 of the Agricultural Adjustment Act.

Given that this is a leaf node, there are no further subdivisions within this specific classification. The unique nature of Chapter 99 codes means that they are not typically compared to broad product categories like live animals (Chapters 01) or other raw materials. Instead, their relevance lies in the specific proclamations and legislative actions that create them, often imposing duties, quotas, or specific documentation requirements for the named chemical. Importers must consult the relevant proclamations and trade agreements associated with this Chapter 99 code to fully understand the implications for importing N,N-Diethyl-1,3-propanediamine.