Trimethylchlorosilane
Trimethylchlorosilane ((CH3)3SiCl) is a volatile organo-silicon reagent used in silylation reactions and silicone synthesis. Classified under HTS 2931.90.90.10 as it meets the definition of organo-inorganic compounds with silicon directly bonded to carbon, excluded from sulfonated/halogenated derivatives.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other organo-inorganic compounds excluding silicon-specific subheading
If documentation emphasizes inorganic aspects over organo-silicon functionality, it defaults to broader 2931.90.90.
If classified primarily by halogenated hydrocarbon structure
Compounds where organic halide function dominates over organo-silicon linkage may shift to Chapter 29 hydrocarbon headings.
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Import Tips & Compliance
• Include CAS registry number (75-77-4) and purity analysis in commercial invoice for accurate HTS verification
• Ensure packaging meets UN hazardous material standards due to flammability and corrosivity
• Avoid bulk shipments without stabilizers, as they may reclassify under Chapter 38 if not meeting Chapter 29 purity notes
Related Products under HTS 2931.90.90.10
Dimethyldichlorosilane
Dimethyldichlorosilane is a chemically defined organo-silicon compound with the formula (CH3)2SiCl2, used primarily as a precursor in silicone polymer production. It falls under HTS 2931.90.90.10 as an organo-inorganic compound where silicon is directly linked to carbon atoms, fitting Chapter 29's scope for separate organic compounds containing nonmetals like silicon.
Vinyltrimethoxysilane
Vinyltrimethoxysilane (CH2=CHSi(OCH3)3) is a coupling agent used in composite materials and adhesives. As a chemically defined organo-silicon compound, it belongs to HTS 2931.90.90.10.
Diphenyldichlorosilane
Diphenyldichlorosilane ((C6H5)2SiCl2) is used in high-temperature silicone resin production. This aryl organo-silicon compound fits HTS 2931.90.90.10 criteria.
Methyltrichlorosilane
Methyltrichlorosilane (CH3SiCl3) is a basic silicone monomer. Classified under HTS 2931.90.90.10 as organo-silicon.
Triethoxysilane
Triethoxysilane (HSi(OC2H5)3) used in silane chemistry. HTS 2931.90.90.10 organo-silicon compound.
Hexamethyldisilazane
Hexamethyldisilazane ((CH3)3Si)2NH is an organo-silicon compound used as a surface modification agent and silylating agent in microelectronics. It qualifies for HTS 2931.90.90.10 as an organo-inorganic compound containing silicon directly linked to carbon, within Chapter 29's scope.