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Acta Cryst. (2013). C69, 1516-1523  [ doi:10.1107/S0108270113028965 ]

Tosyl­ate salts of the anti­cancer drug lapatinib

K. Ravikumar, B. Sridhar, J. B. Nanubolu, A. K. S. B. Rao and R. Jyothiprasad

Synopsis: Two tosyl­ate salts of lapatinib, an anti­cancer drug, crystallize in centrosymmetric and noncentrosymmetric space groups. The crystal packing in both structures is influenced by a combination of N-H...O hydrogen bonds and C-H...O inter­actions

Formula: C29H27ClFN4O4S+·C7H7O3S- and C29H28ClFN4O4S2+·2C7H7O3S-

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