N-Carbobenzyloxy-L-valine

Description: White crystalline powder

Assay by HPLC (w/w%)(On anhydrous basis): 99.0%min

Relative substances by HPLC:
CBZ-L-Alanine: Not more than 0.1%

CBZ-L-Isoleucine: Not more than 0.1%

CBZ-L-Leucine: Not more than 0.1%

Any Others: Not more than 0.3%

L-Valine (by TLC% w/w): Not more than 0.2%

CBZ-D-Valine (By HPLC): Not more than 1.0%

Specific Rotation [a]D25 (C=2,in glacial acetic acid,on anhydrous basis): -4.0°～ -4.7°

Water (% w/w. byKF): Not more than 0.5%

Assay (By Titrimetry, % w/w, As C13H17NO4, on anhydrous basis): Not less than 98.0 and not more than 102.0