2922.50.10.00 - dl-3-(3,4-Di hydroxy phenyl) alanine;N-Ethyl-N-(2-methoxy carbonyl ethyl) aniline;dl-Phenyl ephrine base; and Carbonic acid, methyl ester, diester with 2,2'-(m-tolyl amino) diethanol (Toluidine carbonate) 🖩

This HTS category, 2922.50.10.00, encompasses a specific set of aromatic amino-compounds possessing oxygen functional groups. It includes notable substances such as dl-3-(3,4-Di hydroxyphenyl) alanine, commonly known as L-DOPA, which is a crucial precursor in the synthesis of neurotransmitters. Also covered are N-Ethyl-N-(2-methoxy carbonyl ethyl) aniline, dl-Phenyl ephrine base (a decongestant and vasopressor), and Carbonic acid, methyl ester, diester with 2,2'-(m-tolyl amino) diethanol (Toluidine carbonate). These compounds are characterized by the presence of both amine and hydroxyl groups attached to an aromatic ring system, often with further ester or ether functionalities.

Distinguishing this category from its siblings is crucial for accurate classification. For instance, sibling 2922.50.07.00 covers a different assortment of aromatic amino-compounds with oxygen functions, including specific diamines, nitro-anilines, and dihydroxy-propoxy-anilines, as well as d(-)-p-Hydroxyphenylglycine. Sibling 2922.50.11.00 specifically addresses salts derived from d(-)-p-Hydroxyphenylglycine, thereby isolating salt forms of a compound found in the prior sibling. This node, 2922.50.10.00, is reserved for the aforementioned specific chemical entities and does not encompass the salts or the broader array of compounds listed under the other sibling codes.

As a leaf node within the HTS, this classification does not have further subcategories. Therefore, the classification of a product under 2922.50.10.00 hinges directly on its precise identity matching one of the enumerated chemical substances. The specific chemical structure, molecular formula, and characteristic functional groups are the primary determinants for assigning goods to this heading, ensuring a precise and consistent application of customs regulations for these important organic chemicals.