Yes. Compounds such as dinoseb (290891) and DNOC (290892) are regulated pesticide active ingredients. Importers may need to demonstrate EPA registration or exemption status, and shipments can be subject to EPA review at the port of entry in addition to standard CBP clearance.

Heading 2907 covers phenols and phenol-alcohols in their base form. Once a phenol undergoes halogenation, sulfonation, nitration, or nitrosation, the resulting derivative moves to heading 2908. The key question is whether the compound retains only the phenolic hydroxyl or has been chemically modified by one of those processes.