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Homepage Products and Services Pharmaceutical Intermediates & Enzyme
R-HPBE
(R)-(-)-2-Hydroxy-4-phenylbutyric acid ethyl ester
 
Molecular formula
Molecular weight 208.25
CAS registration number [90315-82-5]
 
R-HPBE can be used to produce intermediates for ACE-inhibitors
Appearance Colorless to light yellow liquid
Boiling point 212° C
Purity (HPLC) min. 99.5%
Specific rotation =-8.9°±2.5° (C=1, in EtOH)
Optical purity min. 99.5% e.e.
Water content Less than 0.1%
 
 
BDO
(1S-Cis)-3-bromo-3,5-cyclohexadiene-1,2-diol
 
Molecular formula
Molecular weight 191.02
CAS registration number [130792-45-9]
 
Starting material for producing Tamiphosphor
Appearance White to grey-yellow powder
Storage temperature -20° C
Melting point 90° ~94° C
Specific rotation =18-24° (C=1% in methanol)
HPLC purity ≧96%
   
 
 
 
L-HPA
(L)-Homophenylalanine
 
Molecular formula
Molecular weight 179.22
CAS registration number [943-73-7]
 
L-HPA is primarily used for producing the intermediates of ACE-inhibitors
Appearance White powder
Melting point 298° ~302° C
Minimum purity min. 99.0%
Specific rotation =+45°±1° (C=1 in 3M HCl)
Optical purity 99.0% e.e.
Loss on drying No more than 0.5%
 
 
 
L-HPE
L-Homophenylalanine Ethyl Ester HCl
 
Molecular formula
Molecular weight 243.73
CAS registration number [90891-21-7]
 
L-HPE is mainly used for producing the intermediates of ACE-inhibitors
Appearance White crystal
Melting point 152 ~158° C
Purity (HPLC) min. 99.0%
Specific rotation =+40°±1° (C=2, Ethanol)
Optical purity min. 99.0% e.e.
Loss on drying No more than 0.5%
 
 
 
R-HPBA
(R)-(-)-2-Hydroxy-4-phenylbutyric acid
 
Molecular formula
Molecular weight 180.20
CAS registration number [29678-81-7]
 
R-HPBA can be used to produce the intermediates of ACE-inhibitors
Appearance White to near-white crystal-powder
Melting point 116°C ~118° C
Minimum purity min. 99.0%
Specific rotation =+40°±1° (C=2.8, in Ethanol)
Optical purity 99.0% e.e.
Loss on drying No more than 0.5%
 
 
LIPASE
Source: from recombinant E. coli
 
Molecular weight 33 KDa
CAS registration number [9001-62-1]
 
For Mirror- isomer special optical resolution
Appearance Powder
Specific activity ≧200 U/mg
color Beige-brown
   
 
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