铁杆木虫 (职业作家)
皇家水神教--军事观察员 ![]()
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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 感谢参与,应助指数 +1 444号便利店: 金币+50, ★★★很有帮助, 基本上是所需要的 2018-08-10 15:31:05
晶形未见原研的描述:不过在EMA的审评报告中提到过,本品存在两种晶形形式,无水物和一水合物,其中无水物被用作制成制剂。
It appears as an almost white, or white, crystalline powder that is freely soluble in water, chloroform,ethanol and methanol; slightly soluble in acetonitrile and practically soluble in ethe. Dexmedetomidinehas one chiral centre and is therefore optically active. During the synthesis only one (S)-enantiomer is manufactured and used in the manufacture of the finished product. There are two recognisedpolymorphic forms of dexmedetomidine: anhydrous (form A) and monohydrate (form B). Form A is consistently obtained during synthesis and is used in the manufacture of the finished product. |
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