9902.07.63 - 4-Chloro-7-(4-methylphenylsulfonyl)-7H-pyrrolo[2,3-d] pyrimidine (CAS No. 479633-63-1) (provided for in subheading 2935.90.75)

This classification, HTS Code 9902.07.63, pertains to a specific chemical compound: 4-Chloro-7-(4-methylphenylsulfonyl)-7H-pyrrolo[2,3-d] pyrimidine. This entry is designated for inclusion under subheading 2935.90.75, indicating its primary classification within Chapter 29, which covers organic chemicals. The presence of this code within Chapter 99 signifies a temporary legislative or trade agreement provision, meaning its application may be subject to specific conditions or limitations beyond its inherent chemical nature.

As a leaf node within Chapter 99, this classification does not have further subdivisions. Its distinctiveness from sibling categories in Chapter 99 lies in its precise chemical identity. Unlike broader temporary provisions that might cover various classes of goods or duty rates, this code targets a singular, identified chemical substance. Its purpose is to manage or track the import of this specific compound, potentially due to its role in certain industrial processes, its status as a controlled substance, or for statistical tracking purposes under special trade agreements.