摘要 |
An amorphous compound of the formula (1): wherein the temperature showing an endothermic peak by differential scanning calorimetry (DSC) is 40 to 80° C. and the solution rate into n-hexane at 25° C. in the following test system is 1.5 mg/sec or more. <Test System Regarding Solution Rate> At 25° C., 1 g of a specimen is charged into a vessel containing 50 g of n-hexane (capacity: 100 ml, outer diameter: 55 mm, height: 70 mm), a 38 mm diameter fan type stirring blade is rotated at a revolution of 100 rpm, and the time until dissolution of the specimen is measured.
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