9902.08.60 - Copper phthalocyanine monosulfonate (hydrogen [29H,31H-phthalocyaninesulphonato (3-)-N29, N30, N31, N32]cuprate(1-)), not ready for use as pigment (CAS No. 28901-96-4) (provided for in subheading 3204.17.60)

This HTS category, 9902.08.60, specifically addresses copper phthalocyanine monosulfonate, identified by CAS No. 28901-96-4. The description highlights that these compounds, while chemically defined, are not yet prepared for use as pigments. This distinction is crucial for classification, as it signifies an intermediate stage of production or a product intended for further processing rather than direct application in coloration.

Within Chapter 99 of the HTS, which encompasses temporary legislation and special provisions, this particular code signifies a temporary modification or restriction applied to the commodity otherwise classified under subheading 3204.17.60. This means that while the substance itself may fall under a broader category for synthetic organic dyestuffs, the 9900 series code indicates specific, often time-limited, tariff treatment or import requirements separate from its inherent chemical classification.

As this is a leaf node within the HTS database, there are no further subcategories. The classification is highly specific, focusing on the exact chemical compound and its state of readiness for use as a pigment. Importers must carefully verify both the chemical identity and the intended application to ensure correct classification and compliance with any associated temporary legislation or restrictions.