Disclosed herein is a salt of (E)-N-(2-amino-phenyl)-3-{ 1-[4-(1-methyl-1H-pyrazol-4yl)-benzenesulfonyl]-1H-pyrrol-3-yl} acrylamide selected from the group consisting of the hydrobromide, methansulfonate, hemi ethane-1,2-disulfonate, benzenesulfonate, toluenesulfonate and 2-naphthalenesulfonate, processes for their preparation, compositions comprising said salts. Said compound is useful in treating, preventing of ameliorating benign and/or malignant neoplasia, particularly cancer.