2917.32.00.00 - Dioctyl orthophthalates 🖩

This HTS category, 2917.32.00.00, specifically classifies dioctyl orthophthalates. These are esters derived from orthophthalic acid and octyl alcohol. Dioctyl orthophthalates are primarily used as plasticizers, imparting flexibility and durability to polymers, most notably polyvinyl chloride (PVC). Their physical characteristics, such as their liquid state at room temperature and specific chemical structure, are key to their classification.

Distinguishing this category from its siblings, other orthophthalate esters like dinonyl or didecyl orthophthalates (2917.33.00) are differentiated by the specific alcohol group attached to the phthalate backbone. Similarly, 2917.34.01 covers a broader range of "other esters of orthophthalic acid," implying those not specifically enumerated elsewhere. Categories such as 2917.35.00.00 (phthalic anhydride) and 2917.36.00.00 (terephthalic acid) represent different parent acids or anhydride forms, rather than the esterified derivatives covered here.

As a leaf node, HTS 2917.32.00.00 does not have further subdivisions. Classification within this heading relies on confirming the chemical identity as an ester of orthophthalic acid with octyl alcohol. Importers and exporters should ensure that the product's chemical composition and intended use align with the definition of dioctyl orthophthalates to ensure accurate tariff declaration.