9902.08.86 - N, N-Dimethyl-N-octadecyl-1-octadecanaminium-(Sp-4-2)- [29H, 31H-phthalocyanine-2- sulfonato- N29, N30,N31, N32] cuprate (phthalocyanine blue additive) (CAS No. 70750-63-9) (provided for in subheading 3204.90.00)

This HTS code, 9902.08.86, covers a specific chemical compound: N, N-Dimethyl-N-octadecyl-1-octadecanaminium-(Sp-4-2)-[29H, 31H-phthalocyanine-2-sulfonato-N29, N30,N31, N32] cuprate, commonly known as phthalocyanine blue additive. This specialized substance, identified by CAS number 70750-63-9, is a complex organometallic compound utilized for its coloring properties, specifically as a blue pigment or additive.

As a temporary or special classification provision within Chapter 99, this code diverts from the standard classification of pigments found in Chapter 32. While subheading 3204.90.00 is cited as its parent classification in the regular tariff, this 9902 code signifies a unique or temporary regulatory treatment. Therefore, its primary distinction from other temporary or special provisions lies in the precise chemical identity and intended application of this specific phthalocyanine blue additive, as opposed to broader categories of temporary tariff modifications or other special import considerations.

Since this is a leaf node within the HTS, there are no further subcategories to explore under this specific code. Classification decisions at this level are highly granular, focusing on the exact chemical composition and its specific, albeit temporary, tariff treatment. This necessitates a thorough understanding of the material's properties and its inclusion in the temporary provisions of Chapter 99.