2937.90.05.00 - Epinephrine

This HTS classification covers epinephrine, also known as adrenaline, a vital hormone and neurotransmitter produced by the adrenal glands. It plays a critical role in the body's "fight or flight" response, increasing heart rate, blood pressure, and glucose levels. This category specifically includes both naturally sourced and synthetically produced epinephrine, as well as its direct derivatives and structural analogues that retain similar hormonal functions.

While this node specifically identifies epinephrine, its immediate sibling, "Other," would encompass catecholamine hormones, their derivatives, and structural analogues that do not fall under the explicit definition of epinephrine. This distinction is crucial for accurate tariff application, ensuring that only epinephrine and its direct, functionally similar counterparts are classified here, while other related catecholamines are directed to the more general "Other" provision.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification at this level requires careful consideration of the product's chemical identity and its primary function as a catecholamine hormone. The specific HTS code 2937.90.05.00 is dedicated solely to epinephrine, differentiating it from other hormones and their analogues within the broader Chapter 29.