Patent ID: 9512060
Filing Date: 2016-12-06
CPC Classification: A61P,C07B,C07C

Claim Text:
1. A solid state form of a salt of 3-[(1R,2R)-3-(dimethylamino)-1-ethyl-2-methylpropyl] phenol (tapentadol salt), wherein the salt of tapentadol is a maleate salt and is characterized by one or more of the following properties i) a powder X-ray diffraction pattern in accordance with ii) a powder X-ray diffraction pattern having peaks at 15.31, 16.08, 21.08, 27.95, 28.53 and 29.51±0.2 degrees 2-theta; and iii) a powder X-ray diffraction pattern having peaks at 19.13, 20.44, 22.90, 24.76, 30.66, 31.06, 31.81, 33.80, 34.84, 35.29, 38.31, 40.26, 40.68 and 43.16±0.2 degrees 2-theta.