Description
Technical Parameters
Product Brief Introduction
Product name:L-Methionine
CAS：63-68-3
MF:C5H11NO2S
MW:149.21
Product Specification
|
Item |
Specification |
|
Appearance |
White crystals or crystalline powder |
|
Identification |
IR: The infrared absorption spectrum of the sample complies with the reference standard. |
|
Specific Rotation |
+22.4°~ +24.7° |
|
PH |
5.6-6.1 |
|
Loss on Drying |
≤ 0.30% |
|
Residue on Ignition |
≤ 0.40% |
|
Sulfate (SO42-) |
≤ 0.03% |
|
Chloride (Cl-) |
≤ 0.05% |
|
Heavy Metals (as Pb) |
≤ 15ppm |
|
Iron |
≤ 30ppm |
|
Assay |
98.5%-101.5% |
