Tetramethylammonium (TMA) is the simplest quaternary ammonium cation. It has the chemical formula [Me 4 N] + and consists of four methyl groups (−CH 3, denoted Me) attached to a central nitrogen atom. The cation is isoelectronic with neopentane (Me 4 C). It is positively-charged and can only be isolated in association with a counter-ion.

Tetramethylammonium is the simplest quaternary ammonium cation, comprising a central nitrogen linked to four methyl groups. ChEBI Tetramethylammonium has been reported in Maerua subcordata with data available.

Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with molecular formula N(CH 3) 4 + OH −. It is commonly encountered in form of concentrated solutions in water or methanol. TMAH in solid state and its aqueous solutions are all colorless, but may be yellowish if impure.

Tetramethylammonium hydroxide (TMAH) is a potentially lethal chemical that is commonly used in device research as an etchant for silicon and developer for photopatterning1. It is also used for thermochemolysis2, and cleaning DNA microarrays3. It is often used in aqueous solution, but is also occasionally used as a solution in methanol.

Tetramethylammonium chloride is one of the simplest quaternary ammonium salts, with four methyl groups tetrahedrally attached to the central N. The chemical formula (CH 3) 4 N + Cl − is often abbreviated further as Me 4 N + Cl −.

2005年6月13日 · This compound belongs to the class of organic compounds known as tetraalkylammonium salts. These are organonitrogen compounds containing a quaternary ammonium substituted with four alkyl chains. Explore 4,000+ rare diseases, orphan drugs & condition pairs, clinical trial why stopped data, & more. Preview package.

Product Name Tetramethylammonium hydroxide, 25 wt% in methanol Cat No. : AC138350000; AC138351000; AC138355000; AC138350025 Synonyms No information available Recommended Use Laboratory chemicals. Uses advised against Food, drug, pesticide or biocidal product use. Details of the supplier of the safety data sheet 2. Hazard(s) identification ...