2937.23.50.50 - Other

This HTS category, 2937.23.50.50, specifically addresses "Other" steroidal hormones, their derivatives, and structural analogues that function primarily as estrogens or progestins. It serves as a residual category for compounds within this subgroup that do not fall under more specific subheadings. The primary characteristic defining goods within this classification is their steroidal structure and their hormonal activity related to estrogenic or progestogenic functions, whether naturally occurring or synthesized.

This subheading distinguishes itself from its sibling, 2937.23.50.20, which is exclusively reserved for progesterone. Therefore, while both are under the umbrella of estrogens and progestins, this category is for steroidal hormones and their analogues that are neither progesterone itself nor other specifically enumerated estrogenic or progestinic compounds. Classification here hinges on the absence of a more precise description for the particular steroidal hormone or its analogue.

As this is a leaf node, there are no further subcategories. Consequently, the classification into 2937.23.50.50 is final for qualifying goods. When classifying, consider if the compound is a steroidal hormone acting as an estrogen or progestin, and if it does not fit any other more specific description within the HTS at this level or higher. This often includes less common synthetic analogues or naturally derived compounds that exhibit these specific hormonal activities.