Wiktionary
trimethylarsine
n. (context organic compound English) The compound (CH3)3As
Wikipedia
Trimethylarsine
Trimethylarsine (abbreviated TMA or TMAs) is the chemical compound with the formula (CH)As, commonly abbreviated As Me or TMAs. This organic derivative of arsine has been used as a source of arsenic in microelectronics industry, a building block to other organoarsenic compounds, and serves as a ligand in coordination chemistry. It has distinct " garlic"-like smell. Trimethylarsine had been discovered as early as 1854.
Trimethylarsine (data page)
This page provides supplementary chemical data on Trimethylarsine.