9902.01.74 - Lanthanum phosphate, cerium terbium-doped (CAS No. 95823-34-0) (provided for in subheading 2846.90.80)

This HTS category, 9902.01.74, specifically covers lanthanum phosphate doped with cerium and terbium. These are rare earth phosphors, often utilized in applications requiring phosphorescence, such as lighting, displays, and specialized scientific equipment. The CAS number 95823-34-0 provides a precise chemical identifier for this particular compound.

As a temporary provision within Chapter 99, this classification is distinct from the permanent classifications found in earlier chapters of the HTS. While the underlying material (rare earth compounds) might be classified elsewhere under Chapter 28, this specific entry is for a temporary measure, as indicated by its placement in Chapter 99 and its reference to subheading 2846.90.80. It is crucial to note that this is a leaf node, meaning there are no further subdivisions within this specific code. Classification here hinges on the precise chemical composition and intended use as a doped lanthanum phosphate, differentiating it from broader categories of rare earth compounds or general phosphorescent materials.