Imatinib, Free Base

Solubility: Soluble in DMSO at 25 mg/mL with slight warming, soluble in ethanol at 5 mg/mL with slight warming, very poorly soluble in water, maximum solubility in plain water is estimated to be about 5-20 µM, buffers, serum, or other additives may increase or decrease. This is the free base form of imatinib, please see the other form of this product, Imatinib, Methanesulfonate Salt, Cat. No. I-5508, for further technical information. The methanesulfonate salt form of imatinib is used for some or all imatinib formulation for use in humans. NOTE: the trade names listed above under 'Related Terms' are for imatinib-containing drug products and may apply variously to formulations of one or another form of imatinib, such as the free base, mesylate salt, or other forms.