Tributyltin Oxide
Tributyltin oxide is an organo-tin compound where tin atoms are directly linked to carbon atoms in butyl groups, classifying it under HTS 2931.90.90.29 as other organo-tin compounds. It is commonly used as a biocide in antifouling paints for marine applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If formulated as ready-to-use antifouling paint
Paint preparations containing organo-tin compounds as active ingredients fall under Chapter 38 for pesticides.
If specifically triphenyltin compounds
Certain named organo-tin compounds like triphenyltin have specific subheadings within 2931.90.
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
• Verify REACH and TSCA registration due to strict environmental regulations on organotin biocides
• Include detailed safety data sheets (SDS) and confirm Sn-C bonding for proper Chapter 29 classification
• Avoid misclassification as pesticide formulations under Chapter 38; pure compounds stay in 2931
Related Products under HTS 2931.90.90.29
Dibutyltin Dilaurate
Dibutyltin dilaurate is an organo-tin catalyst with tin-carbon bonds, used primarily as a catalyst in silicone and polyurethane production. It falls under HTS 2931.90.90.29 as other organo-tin compounds per Chapter 29 notes on direct metal-carbon linkages.
Dioctyltin Bis-(2-ethylhexylmercaptoacetate)
A non-toxic organo-tin heat stabilizer for PVC with direct tin-carbon linkages in octyl groups. HTS 2931.90.90.29 applies to this other organo-tin compound per chapter notes excluding only specifically named compounds.
Tetra-n-propylthiuram Disulfide
Although primarily organo-sulfur, this thiuram accelerator contains tin impurities making it organo-inorganic under 2931 when tin-carbon bonds present. Falls under HTS 2931.90.90.29 as other organo-tin compounds.
Bis(tributyltin) Oxide
Biochemical reagent and antifouling agent with characteristic Sn-C bonds in tributyl groups. HTS 2931.90.90.29 covers this organo-tin compound excluded from specific subheadings.
Dimethyltin Dichloride
Organo-tin compound used as PVC stabilizer precursor with methyl groups directly bonded to tin. Classifies under HTS 2931.90.90.29 per Chapter 29 notes on organo-inorganic compounds.
Cyclic Trimethylenetricarboxylic Triamide Tin Complex
Specialty organo-tin complex for polymer catalysis with tin directly linked to carbon atoms. HTS 2931.90.90.29 applies as other organo-tin not specifically provided for.