|
|
|
| L-Methionine |
|
|
|
|
|
| [Molecular
formula] |
C5H11NO2S |
| [Appearance] |
White
crystalline powder |
|
|
|
|
|
| Item |
AJI
92 |
FCC
IV |
| Assay |
99.0£¥~100.5£¥ |
98.5£¥~101.5£¥ |
| Transmittance |
¡Ý98.0£¥ |
|
| Specific
Rotation |
+23¡ã
~ +24.5¡ã |
+21¡ã ~ + 25¡ã |
| Chloride
(Cl) |
¡Ü0.020£¥ |
|
| Ammonium (NH4) |
¡Ü0.02£¥ |
|
| Sulfate(SO4) |
¡Ü0.020£¥ |
|
| Iron(Fe) |
¡Ü10ppm |
|
| Heavy
metals (Pb) |
¡Ü10ppm |
¡Ü10ppm
(Lead ¡Ü10ppm) |
| Arsenic(As2O3) |
¡Ü1ppm |
|
| Other
amino acids |
chromatographically
not detectable |
|
| Loss
on drying |
¡Ü0.20£¥ |
¡Ü0.5% |
| Residue on
ignition |
¡Ü0.10£¥ |
¡Ü0.1£¥ |
| PH
value |
5.6~6.1 |
|
|
