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Tetramethylammonium Bromide

Tetramethylammonium bromide is used as emulsifier, catalyzer, sterilizer, antistatic and antiseptic agent.

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Tetramethylammonium Chloride

Tetramethylammonium chloride is a quaternary ammonium salt. It has few applications, unlike quaternary ammonium salts that feature more longer alkyl substituents. It is used in organic synthesis for methylation and occasionally as a precipitating agent. In low concentrations, it is used with polymerase chain reactions to increase yield and specificity.

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Tetramethylammonium Hydroxide

Tetramethylammonium hydroxide is a quaternary ammonium salt. It is used as an anisotropic etchant of silicon. It is also used as a basic solvent in the development of acidic photoresist in the photolithography process. Since it is a phase transfer catalyst, it is highly effective in stripping photoresist. It is also used as a surfactant in the synthesis of ferrofluid, to prevent agglomeration.

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Tetraphenylcyclopentadienone

Tetraphenylcyclopentadienone is an organic compound. Because of its highly conjugated nature, it can be analyzed in the UV spectrum. It has a propeller shape in its 3D conformation. The four phenyl rings are rotated out of the plane compared to the central ring because of steric repulsion with each other. These rings reduce the reactivity of the cyclopentadienone core by sterically blocking other reactants from getting close enough to it. It is used as the diene in the Diels-Alder synthesis of 1,2,3,4-tetraphenylnaphthalene with benzyne as the dienophile. It may also be used to prepare hexaphenylbenzene by reaction with diphenylacetylene in the Diels-Alder reaction.

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Tetraphenyltin

Tetraphenyltin is used in organic synthesis.

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Tetrapropylammonium Bromide

Tetrapropylammonium bromide is prepared by treatment of an amine with an alkylating agent. They show a variety of physical, chemical, and biological properties and most compounds are soluble in water and strong electrolytes.It is used as Softner for textiles and paper products,Phase Transfer Catalyst,Emulsifying Agents and Pigment Dispersers.

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Tetrapropylammonium Hydroxide

Tetrapropylammonium hydroxide is used in organic synthesis as a phase transfer catalyst to enhance the reaction rate of a two-phase organic-water system , curing accelerators for epoxy resins and as an intermediate.

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