It is an object of the present invention to provide the crystalline form of a thiazolidinedione compound, which is effective as a pharmaceutical ingredient for manufacturing a peroxisome proliferator-activated receptor (PPAR) γ activator and an anticancer pharmaceutical composition. The present invention relates to a crystalline form of a hydrate of 5-(4-{[6-(4-amino-3,5-dimethylphenoxy)-1-methyl-1-H-benzimidazol -2-yl]methoxy}benzyl)-1,3-thiazolidine-2,4-dione dihydrochloride represented by the following formula (I).本發明之一目標係提供噻唑啶二酮化合物之結晶型，其有效於作為製造過氧化物酶體增殖子-活化受體(PPAR)γ活化劑及抗癌醫藥組成物之醫藥成份。本發明係關於下式(I)代表之5-(4-{[6-(4-胺基-3,5-二甲基苯氧基)-1-甲基-1-H-苯并咪唑-2-基]甲氧基}苄基)-1,3-噻唑啶-2,4-二酮之二氫氯酸鹽水合物之結晶型。
