9902.10.49 - Mixtures of 2-amino-2,3-dimethylbutanenitrile (CAS No. 13893-53-3) and toluene (provided for in subheading 3824.99.28)

This HTS category, 9902.10.49, specifically covers mixtures comprised of 2-amino-2,3-dimethylbutanenitrile (identified by CAS No. 13893-53-3) and toluene. The toluene component is also referenced as being provided for under subheading 3824.99.28, indicating a secondary classification context for the toluene itself when it is part of such a mixture. This classification falls under Chapter 99, which is reserved for temporary legislation and modifications, often related to trade agreements or specific import restrictions.

Unlike the preceding sibling categories which deal with live animals (e.g., horses, bovine animals, swine, sheep, goats, and poultry), this category is dedicated to chemical mixtures with specific industrial or laboratory applications. The defining characteristic for classification within 9902.10.49 is the presence and combination of these two particular chemical substances. It is crucial to differentiate this from other chemical mixtures that might fall under Chapter 38, as the specific components and the Chapter 99 designation signal unique regulatory treatment.

As this is a leaf node in the HTS database, there are no further subdivisions under 9902.10.49. Therefore, classification within this code relies solely on verifying the presence of both 2-amino-2,3-dimethylbutanenitrile and toluene within the imported mixture. Any deviation in composition or the absence of either key component would necessitate re-evaluation and classification under a different HTS provision.