Search results
Results from the WOW.Com Content Network
The most important TMA compound from a pharmacological standpoint is TMA-2, as this isomer has been much more widely used as a recreational drug and sold on the grey market as a so-called research chemical; TMA (sometimes referred to as "mescalamphetamine" or TMA-1) and TMA-6 have also been used in this way to a lesser extent.
Al 2 Me 6 reacts with aluminium trichloride to give (AlMe 2 Cl) 2. TMA/metal halide reactions have emerged as reagents in organic synthesis . Tebbe's reagent , which is used for the methylenation of esters and ketones , is prepared from TMA and titanocene dichloride . [ 9 ]
Download QR code; Print/export Download as PDF; Printable version ... Appearance. move to sidebar hide. TMA-2 may be: TMA-2 mine; Soyuz TMA-2, a Russian space ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
During atomic layer deposition, a film is grown on a substrate by exposing its surface to alternate gaseous species (typically referred to as precursors or reactants). In contrast to chemical vapor deposition, the precursors are never present simultaneously in the reactor, but they are inserted as a series of sequential, non-overlapping pulses.
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.
In December 2023, the US Drug Enforcement Administration issued a notice of proposed rulemaking that would classify both 2,5-dimethoxy-4-iodoamphetamine and 2,5-dimethoxy-4-chloroamphetamine as schedule I controlled substances. [24] DOI is regularly used in animal and in vitro research. [25] Scheduling DOI could cause problems for medical ...
Trimethylamine (TMA) is an organic compound with the formula N(CH 3) 3. It is a trimethylated derivative of ammonia. TMA is widely used in industry. [5] [6] At higher concentrations it has an ammonia-like odor, and can cause necrosis of mucous membranes on contact. [7] At lower concentrations, it has a "fishy" odor, the odor associated with ...