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Piracetam - PIRACETAM Piracetamum C6H10N2O2 P.t.l 142,2...

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PIRACETAM Piracetamum C 6 H 10 N 2 O 2 P.t.l: 142,2 Piracetam là 2-(2-oxopyrrolidin-1-yl)acetamid, ph i ch a t 98,0 đ n 102,0% ế C 6 H 10 N 2 O 2 tính theo ch ph m đã làm khô. ế Tính ch t B t đa hình màu tr ng ho c g n nh tr ng. R ư t d tan trong n c, tan trong ethanol 96%. ướ Đ nh tính Ph h ng ngo i (Ph l c 4.2) c a ch ph m ph i phù h p v i ph h ng ngo i c a ụ ụ ế piracetam chu n (ĐC). N u ph h ng ngo i có s khác bi t, hòa tan riêng bi t ch ph m th ế ế piracetam chu n (ĐC) trong ethanol 96% (TT), b c h i dung môi trên cách th y t i khô, dùng ơ c n thu đ c ghi ph m i đ so sánh. ượ Đ trong và màu s c c a dung d ch Hòa tan 2,0 g ch ph m trong ế n c ướ và pha loãng thành 10 ml v i cùng dung môi. Dung d ch ph i trong (Ph l c 9.1) và không màu (Ph l c 9.3, ph ng pháp 2). ụ ụ ụ ụ ươ T p ch t liên quan Xác đ nh b ng ph ng pháp s c ký l ng (Ph l c 5.3).
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