Patent ID: 8513272

Claim:
A crystalline form of a Compound I-para-toluenesulfonic acid (pTSA) salt (1:1) where Compound I is (11-isobutyl-2-methyl-8-(2-pyrimidinylamino)-2,5,6,11,12,13-hexahydro-4H-indazolo[5,4-a]pyrrolo[3,4-c]carbazol-4-one) having an X-ray powder diffraction pattern comprising one or more of the following peaks: 5.37±0.2 degrees 2-theta, 6.79±0.2 degrees 2-theta, 13.64±0.2 degrees 2-theta, 22.58±0.2 degrees 2-theta and/or 25.54±0.2 degrees 2-theta, when measured using Cu—Kα radiation (λ=1.54056 Å).