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Nanjing Qingze Medical Technology Development Co.,LTD
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Rhein
| Subject: | Rhein |
| Update Date: | 2007-03-06 00:00:00.0 |
| Valid Period: |
Never expired
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or
or
Description
Content:98% 30% 50% 90% .
Test method:HPLC.
Herb source: Rheum palmatum L,rhe root .
Molecular Formula: C15H8O6.
Molecular Weight: 284.21 .
Physics Properties:Yellow needle cystal,melting point 321-322 OC,decompose on 330 OC.hardly soluble in the water,soluble in the alkali etc,slightly soluble in the ethanol,benzene,chloroform,aether etc.
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