2939.80.00.10 - Saxitoxin

This HTS category specifically classifies Saxitoxin, a potent neurotoxin that is naturally produced by certain marine dinoflagellates and cyanobacteria. Saxitoxin and its salts, ethers, esters, and other derivatives fall under this heading when they are considered alkaloids or their related compounds, as defined within Chapter 29. Its primary characteristic is its biological origin and its classification as a complex organic chemical.

Distinction from sibling categories is crucial for accurate classification. The sibling category, 2939.80.00.50, covers "Other" alkaloids, natural or reproduced by synthesis, and their derivatives that do not fit the specific definition of Saxitoxin. Therefore, if a substance is an alkaloid or derivative but is not Saxitoxin, it would be classified under the "Other" sibling category.

As this node represents a leaf node in the HTS classification, there are no further subcategories. Classification is therefore determined solely by whether the product is Saxitoxin or its derivatives, distinguishing it from other, more general, alkaloid classifications. This specificity is essential for regulatory control and trade tracking of this particular toxin.