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土臭素,Brevetoxin C,荷叶碱, 2-甲基异莰醇

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express-cn2009 发表于 2010-6-28 17:42:54 | 显示全部楼层 |阅读模式
土臭素标准品Geosmin Standard
for Water Analysis
Storage condition: Keep at 2-10 degrees C.
Synonym Geosmin
[4S-(4.alpha.,4a.alpha.,8a.beta.)]-octahydro-4,8a-dimethyl-4a(2H)-naphthol
[4S-(4alpha,4aalpha,8abeta)]-octahydro-4,8a-dimethyl-4a(2H)-naphthol
4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, (4S,4aS,8aR)-
1,10-trans-dimethyl-trans-(9)-decalol
4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, (4S-(4-alpha,4a-alpha,8a-beta))-
(-)-Geosmin
4a-alpha-(2H)-Naphthol, octahydro-4-alpha,8a-beta-dimethyl-
[4S-(4alpha,4aalpha,8abeta)]-Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol
octahydro-4alpha,8abeta-dimethyl-4aalpha(2H)-naphthol  
  CAS NO. 19700-21-1  
  Molecular Formula C12H22O  
  Molecular Weight 182.30  
Appearance:  Colorless -slightly yellow, clear liquid  
  Purity:  98.0+% (capillary GC)  
  Boiling Point:  270 degrees C  
  Specific Rotation:  -16.5°(D)  
**********************************************************************************************************
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~~~~~~~~~~~~~~~~~~~~~
Express Technology Co.,Ltd
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~~~~~~~~~~~~~~~~~
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Brevetoxin C (pbTx-3)

Form:Ivory crystal solid
Molecular weight:897.1
Molecular formula:C50H72O14
Purity:        ≥ 95% by HPLC
Solubility:   MeOH, EtOH or DMSO
Storage:     Stable in -25 oC for 2 year
Toxicity:     LD50: 0.52 mg/kg Oral to mouse
Reference: Baden, D.G., et al. 1994. Nat. Toxins 2, 212.
                      Rein, K., et al. 1994. J. Org. Chem. 59, 2107.
                      Edwards, R.A., et al. 1992. Mol. Brain Res. 14, 64.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
伊普瑞斯科技有限公司
info@express-cn.com  
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传真:010-60206773
QQ:1069267096
MSN:liyuqiu1983@hotmail.com
     cindylee-1981@hotmail.com:




荷叶碱 Nuciferine 少量现货供应 预购从速
 简介荷叶碱是荷叶中的一种阿朴啡型生物碱,为荷叶中的主要降脂活性成分;以晒干粉碎的荷叶为原料,采用纤维素酶预处理、稀盐酸浸提、超声波辅助提取、氯仿萃取一系列方法提取而成。
英文名称: Nuciferine
CAS登录号:475-83-2
分子式:C19H21NO2   
外观:棕色至浅白色粉末
含量:98%
                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   如有更多其它试剂产品需求与查询,请及时接洽:info@express-cn.com  
或在我公司查询主页客户留言处(http://www.express-cn.com/expressgb/lyb.htm
留下您的查询内容,我们即会在当天为您作出回复。
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
伊普瑞斯科技有限公司
info@express-cn.com  
总机:010-60206266
传真:010-60206773
QQ:1069267096
MSN:liyuqiu1983@hotmail.com
     cindylee-1981@hotmail.com:
www.express-cn.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
因为还不是最好,所以我们更加努力。




2-Methylisoborneol Standard   2-甲基异莰醇
CAS NO.: 2371-42-8  
Grade: for Water Analysis  
Regulation / Hazardous:   
Storage condition: Keep at 2-10 degrees C.
Synonym 2-Methylisoborneol
2-MIB
(1R-exo)-1,2,7,7-Tetramethylbicyclo(2,2,1)heptan-2-ol  
Molecular Formula C11H20O  
Molecular Weight 168.28  
Appearance:  White - nearly white, crystals - crystalline powder or mass  
Purity:  98.0+% (Capillary GC)  
**********************************************************************************************************
谢谢使用伊普瑞斯的服务
~~~~~~~~~~~~~~~~~~~~~
Express Technology Co.,Ltd
info@express-cn.com
在线客服:QQ:1069267096
          MSN:liyuqiu1983@hotmail.com
              cindylee-1981@hotmail.com
Tel:86-10-60206266
Fax:86-10-60206773
www.express-cn.com
~~~~~~~~~~~~~~~~~
因为还不是最好,所以我们更加努力。



想我飞飞 该用户已被删除
想我飞飞 发表于 2012-12-25 20:33:44 | 显示全部楼层
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