Synonyms: Piperidinium,1-(2-hydroxyethyl)-1-methyl-, iodide, 2,2,4,4-tetramethylvalerate (8CI);Piperidinium, 1-methyl-1-[2-[(2,2,4,4-tetramethyl-1-oxopentyl)oxy]ethyl]-,iodide (9CI); Valeric acid, 2,2,4,4-tetramethyl-, ester with1-(2-hydroxyethyl)-1-methylpiperidinium iodide; 2-Piperidinoethyl2,2,4,4-tetramethylpentanoate methiodide