9902.09.07 - Sodium petroleum sulfonate (CAS No. 68608-26-4) (provided for in subheading 3402.11.50)

This classification, HTS 9902.09.07, specifically addresses Sodium petroleum sulfonate, identified by CAS No. 68608-26-4. This substance is a sulfonated derivative of petroleum, commonly used as a surfactant, emulsifier, or dispersant in various industrial applications, including petroleum recovery, metalworking fluids, and cleaning agents. Its presence in this chapter signifies a temporary modification or restriction, as indicated by its parent context under Section XXII, which deals with special classification provisions and temporary legislation.

Unlike the numerous sibling categories that represent live animals and a vast array of goods across other chapters of the HTS, HTS 9902.09.07 is highly specific. It does not cover general chemicals or petroleum products, but rather a particular sulfonated derivative with defined industrial uses. Its inclusion in Chapter 99 highlights that its treatment is subject to temporary legislation or trade agreement provisions, differentiating it from its standard classification under subheading 3402.11.50 which covers organic surface-active agents.

As HTS 9902.09.07 is a leaf node, there are no further subcategories. Classification under this code indicates that the specific import or export of Sodium petroleum sulfonate is subject to the particular provisions outlined within Chapter 99, overriding or supplementing its base classification. Importers and exporters should consult relevant trade agreements and proclamations to understand the specific duties, quotas, or restrictions applicable to this product under this temporary legislation.