|
|
|
| L-Histidine |
|
|
|
|
|
| [Molecular
formula] |
C6H9N3O2 |
| [Appearance] |
White
crystalline powder |
|
|
|
|
|
| Item |
AJI
92 |
FCC
IV |
| Assay |
99.0£¥~101.0£¥ |
|
| Transmittance |
¡Ý98.0£¥ |
|
| Specific
Rotation |
+12.0¡ã ~
+12.8¡ã |
|
| Chloride
(Cl) |
¡Ü0.020£¥ |
|
| Ammonium (NH4) |
¡Ü0.020£¥ |
|
| Sulfate(SO4) |
¡Ü0.020£¥ |
|
| Iron(Fe) |
¡Ü10ppm |
|
| Heavy
metals (Pb) |
¡Ü10ppm |
|
| Arsenic(As2O3) |
¡Ü1ppm |
|
| Other
amino acids |
chromatographically
not detectable |
|
| Loss
on drying |
¡Ü0.2£¥ |
|
| Residue on
ignition |
¡Ü0.1£¥ |
|
| PH
value |
7.0 ~
8 |
|
|
