o-Diquat Dibromide Technical Grade
Pure o-diquat dibromide (1,1'-ethylene-2,2'-dipyridylium dibromide) in technical grade form used as the active ingredient in herbicide formulations. This aromatic heterocyclic nitrogen compound falls under HTS 2933.99.1600 as a specific pesticide chemical. It is imported for mixing into aquatic herbicide products.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as formulated herbicide containing >95% diquat dibromide
Formulated herbicides, even highly concentrated, are classified in Chapter 38 based on their preparation for end use rather than the pure chemical compound.
If modified structure without dibromide salt form
Other aromatic heterocyclic pesticides fall under the broader 2933.39 category if not specifically enumerated as o-diquat dibromide.
If imported as aqueous solution for safety/transport
Per Chapter 29 note (e), solutions in water or solvents for transport may shift to mixtures classification in Chapter 38 if not qualifying as pure compound.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide EPA registration documents and Safety Data Sheets (SDS) confirming pesticide use to avoid reclassification
• Ensure purity certification (>95% ai) as technical grade to distinguish from formulated products under Chapter 38
• Declare exact CAS number (85-00-7) and technical specifications to prevent customs disputes
Related Products under HTS 2933.99.16.00
Diquat Dibromide 37% SL Herbicide Concentrate
Liquid herbicide concentrate containing 37% o-diquat dibromide active ingredient in water-based slurry. While containing the HTS 2933.99.1600 compound, it's often scrutinized for formulation status. Used for aquatic weed control in ponds and irrigation canals.
o-Diquat Dibromide USP/Pharmaceutical Grade
High-purity o-diquat dibromide meeting USP standards for pharmaceutical research applications. Classified under HTS 2933.99.1600 as the specific heterocyclic pesticide compound despite research use claims. Used in toxicology studies and herbicide efficacy research.
Diquat Dibromide 200 g/L Aquatic Herbicide
Liquid formulation with 200 g/L o-diquat dibromide for professional aquatic weed management. Falls under HTS 2933.99.1600 when imported as high-concentration active ingredient solution. Controls submerged weeds in lakes and reservoirs.
o-Diquat Dibromide Reference Standard
Certified reference material of o-diquat dibromide for analytical laboratory use in pesticide residue testing. Precisely classified under HTS 2933.99.1600 as the pure heterocyclic compound. Used for GC-MS calibration in environmental monitoring.