L-Methionine
Product Name: L-Methionine
CAS No.: 63-68-3
Molecular Formula: C5H11 NO2S
Standarad: FCCIV, USP 28, CP2000
Package: 25kgs/ fiber drum
Application:
Used for biochemical research and nutrition supplements.It also can be used for pneumonia, cirrhosis and fatty liver's adjuvant therapy.
Specification
|
Item |
Specification |
|
Appearance |
Colorless or white glossy tabular crystal or white crystalline powder, slight special odor. Little bitter taste |
|
Assay |
99.0-101%min |
|
Specific rotation |
+22.4°~+24.7° |
|
Transmittance (T430) |
clear & colorless ≥98.0% |
|
Loss on drying, % |
≤0.3 |
|
Chloride (as Cl), % |
≤0.020 |
|
Sulfate (as SO4), % |
≤0.02 |
|
Ammonium (NH4), % |
≤0.02 |
|
Iron (as Fe) |
≤10ppm |
|
Heavy Metals |
≤10ppm |
|
Arsenic (As) |
≤1ppm |
|
pH Value |
5.6~6.1 |
|
Residue on ignition, % |
≤0.10 |
|
Other amino acid |
conforms |