Ethylene Thiourea (2-Imidazolidinethione)
Ethylene thiourea, chemically 2-imidazolidinethione, is a heterocyclic imidazole ring compound specifically named in HTS 2933.29.0500. Used as a chemical intermediate and accelerator in rubber vulcanization processes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered organo-sulfur compound without dominant imidazole classification
Chapter notes specify organo-sulfur compounds in 2930, but imidazole structure prevails here.
If when imported as rubber accelerator preparation with additives
Prepared rubber accelerators containing ethylene thiourea classified in Chapter 38.
If for other aromatic/modified aromatic imidazoles not specifically enumerated
This subheading specifically names ethylene thiourea; others use the general provision.
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
• Submit TSCA certification as it's listed on EPA Toxic Substances Control Act inventory
• Include detailed purity analysis; industrial grades typically >98% purity
• Verify not classified as rubber chemical mixture which would go to Chapter 38
Related Products under HTS 2933.29.05.00
Triflumizole Technical Grade
Triflumizole is a specific imidazole fungicide classified under HTS 2933.29.0500 as 1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)-imino)-2-propoxyethyl]-1H-imidazole, featuring an unfused aromatic imidazole ring. It is used in agriculture to control fungal diseases on crops like grapes and vegetables.
Ethylene Thiourea Industrial Grade
Industrial grade ethylene thiourea specifically provided for in HTS 2933.29.0500, featuring the 2-imidazolidinethione structure. Essential intermediate for dithiocarbamate pesticides and rubber processing.
2-Imidazolidinethione (Ethylene Thiourea) Crystals
Crystalline ethylene thiourea (2-imidazolidinethione) explicitly named in HTS 2933.29.0500. Key reagent in synthesis of ethylenebisdithiocarbamate fungicides like ziram and rubber additives.
Triflumizole 98% Technical Powder
High-purity triflumizole technical powder (98% minimum) matching the exact chemical structure defined in HTS 2933.29.0500. Supplied for formulation into systemic fungicides protecting fruits, vegetables, and turf.
Triflumizole Fungicide Active Ingredient
Pure triflumizole active ingredient as defined precisely in HTS 2933.29.0500, containing the characteristic 4-chloro-2-(trifluoromethyl)phenyl imidazole structure. Used in crop protection formulations worldwide.