IUPAC name or sequence: 2-amino-2-methyl-N-[(2R)-1-(1-methylsulfonylspiro[2H-indole-3,4′-piperidine]-1′-yl)-1-oxo-3-phenylmethoxypropan-2-yl]propanamide
Other names: Ibutamoren, MK-0677, L-163,191; mesylate CAS 159752-10-0
Usually supplied as the mesylate; content is reported for the form you specify.