Tributyltin Oxide
Tributyltin oxide (TBTO) is a chemically defined organotin compound where three butyl groups and oxygen are bound to tin, falling under HTS 2931.20.00.00 as a tributyltin compound. It is commonly used as a biocide in antifouling paints for marine vessels.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If formulated as pesticide or biocide preparation
Mixtures containing tributyltin compounds as active ingredients are classified under Chapter 38 as pesticides, not pure compounds.
If when incorporated into paints or varnishes
Antifouling paints with tributyltin oxide fall under Chapter 32 as synthetic paints rather than separate chemical compounds.
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 compliance with EPA and international restrictions on organotin compounds due to environmental toxicity
• Provide Safety Data Sheets (SDS) and confirm proper hazardous material classification for transport
• Check for country-specific bans on tributyltin use in marine applications before importing
Related Products under HTS 2931.20.00.00
Tributyltin Chloride
Tributyltin chloride is a separate chemically defined organo-inorganic compound with three butyl groups and a chlorine atom directly linked to tin, classified under HTS 2931.20.00.00. It serves as a key intermediate in organotin chemical synthesis.
Tributyltin Acetate
Tributyltin acetate features a tributyltin moiety esterified with acetic acid, qualifying as a tributyltin compound under HTS 2931.20.00.00 per Chapter 29 notes on ester classification. It finds use as a catalyst and stabilizer in PVC production.
Bis(tributyltin) Oxide
Also known as TBTO, this dimeric tributyltin oxide compound contains two tributyltin groups linked by oxygen, squarely within HTS 2931.20.00.00. Historically used in wood preservation and agriculture before regulatory phase-outs.
Tributyltin Fluoride
Tributyltin fluoride is an organo-inorganic compound with fluoride directly linked to the tributyltin group, classified under HTS 2931.20.00.00. It has niche applications in organic synthesis and as a reagent.
Tributyltin Laurate
This tributyltin salt of lauric acid is a chemically defined compound under HTS 2931.20.00.00, following Chapter 29 rules for organic salts classification. Used as a heat stabilizer in plastics processing.
Tributyltin Neodecanoate
Tributyltin neodecanoate combines the tributyltin group with a neodecanoic acid ester, fitting HTS 2931.20.00.00 as a tributyltin compound. Applied as a catalyst in silicone and polyurethane systems.