2937.29.10.00 - Desonide; andNandrolone phenproprionate

This HTS subheading specifically covers two distinct steroid compounds: Desonide, a corticosteroid used primarily for its anti-inflammatory properties in topical dermatological preparations, and Nandrolone Phenylpropionate, an anabolic steroid employed for therapeutic purposes, often in the treatment of conditions involving muscle wasting. Both are synthetic derivatives or analogues of naturally occurring steroid hormones.

This category is distinguished from its sibling, 2937.29.90 ("Other"), by its specific inclusion of Desonide and Nandrolone Phenylpropionate. The "Other" category is a residual provision for steroidal hormones, their derivatives, and structural analogues not otherwise specified within this heading. Therefore, classification here is dictated by the precise chemical identity of the substance.

As this is a leaf node within the HTS, there are no further subcategories. Classification into 2937.29.10.00 is definitive for the named substances. The focus for classification purposes will be on the accurate identification of these specific chemical compounds to ensure correct duty assessment and trade compliance.