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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If heterocyclic amide defines principal character
Heterocyclic compounds in 2933 take precedence over organo-inorganic if ring system dominant.
If imported as polymerisation catalyst preparation
Catalyst mixtures for rubber/plastics classified in Chapter 38.
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Import Tips & Compliance
• Include peer-reviewed structural analysis confirming Sn-C coordination bonds
• Declare as UN 2788 if >25% tin content; check PG III packaging requirements
• Complexes may face coordination compound note (C)(3); tin fragment determines 2931
Related Products under HTS 2931.90.90.29
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.
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.