2917.33.00.50 - Other

This HTS classification, 2917.33.00.50, pertains to "Other" aromatic polycarboxylic acid derivatives specifically within the subcategory of dinonyl or didecyl orthophthalates. This means it encompasses dinonyl or didecyl orthophthalates that do not fall under any more specific designation within this heading. These compounds are esters of orthophthalic acid, characterized by the presence of either nine (nonyl) or ten (decyl) carbon chains attached to the ester groups, and are derived from the branched chain isomers of nonanol or decanol. They are typically used as plasticizers to impart flexibility and durability to polymers.

Within the dinonyl or didecyl orthophthalates grouping, 2917.33.00.50 serves as a residual category. Its sibling, 2917.33.00.10, specifically covers Diisodecyl orthophthalate. Therefore, the "Other" classification would apply to dinonyl orthophthalates and didecyl orthophthalates, as well as any dinonyl or didecyl orthophthalates that are not chemically or structurally identical to diisodecyl orthophthalate. The distinction lies in the specific isomeric composition of the alcohol moiety used in their esterification.

As this is a leaf node, there are no further subcategories under 2917.33.00.50. Classification within this category relies on identifying the product as an ester of orthophthalic acid with nonyl or decyl alcohol chains, and confirming that it is not specifically classified as diisodecyl orthophthalate. The presence of the ester linkage and the specific carbon chain lengths are key determinative factors.