4-acetoxyazetidin-2-one 4-AA Suppliers, 4-acetoxyazetidin-2-one 4-AA Manufacturers.
AS:[76855-69-1]
4-acetoxyazetidin-2-one ( penem intermediate )
(3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone
Appearance: white or off-white crystal
Optical Purity : 99%(ee)
Assay : ≥98.5%( external standard method )
Specific optical rotation : [a] 25 D : +46 ~ +49?( c=0.56 CHCl3 )
Melting point: 104 ~ 108
Company： |
Shandong Kangnuo Bioengineering Co., Ltd. |
Contact： |
Richard Meng |
Phone： |
+86-546-8073216 |
Mobile phone： |
+86-13954662070 |
Fax： |
+86-546-8073200 |
E-mail： |
sales@knpharm.com |
Website：
|
http://www.knpharm.com |
Address： |
22 #, ZiHe Road, Economic Development Zone, Dongying, Shandong, China |
Zip Code： |
257100 |
CN
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