p. 507 - 511
(1993)p. 667 - 674
(2007/10/02)1-methyl-3-(2'.2'.6'.6'-tetramethyl-piperidin-4'-yl-1-oxyl)-urea
1-methyl-3-(2'.2'.6'.6'-tetramethylpiperidin-4'-yl)-urea
4-hydroxyimino-2,2,6,6-tetramethylpiperidine
4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE
4-amino-2,2,6,6-tetramethyl-1-piperidine-1-oxyl