2922.42 - Glutamic acid and its salts:

This HTS category, 2922.42, encompasses glutamic acid, a non-essential amino acid, and its various salts. Glutamic acid is a key building block in protein synthesis and plays a significant role in neurotransmission. Its salts are commonly used as food additives, particularly as flavor enhancers, and can also find applications in pharmaceuticals and other industrial processes. The scope is limited to glutamic acid itself and its direct salt derivatives.

When classifying within 2922.42, it is important to distinguish this category from its siblings. For instance, 2922.41.00 specifically covers lysine and its derivatives, while 2922.43 pertains to anthranilic acid. This section focuses solely on glutamic acid and its associated salts, excluding other amino acids or compounds with different functional groups. 2922.44.00.00 is reserved for the specific compound Tilidine and its salts, further differentiating it from the broader glutamic acid classification.

The subcategories within 2922.42 serve to further refine the classification based on specific salt forms or other distinctions. 2922.42.10.00 specifically addresses monosodium glutamate, a widely recognized and commercially important salt of glutamic acid. The residual subcategory, 2922.42.50.00, is designated for all other salts and derivatives of glutamic acid not specifically enumerated elsewhere within this heading, ensuring comprehensive coverage for related compounds.