THE PHENOMENON OF POLYMORPHISM OF CAPTOPRIL
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Abstract
Some properties of captopril have been investigated by XRD, IR, HNMR, DTA and TLC methods. According to the experimental results, two different crystal forms were found. The crystal products consist of high melting form (rap 103~105℃)and low melting form (rap 84~86℃) and the latter form can be transformed into the former form under proper conditions.
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