Description
Product Name: L-Threonine
CAS Number: 72-19-5
Chemical Formula: C4H9NO3
Molecular Weight: 119.1192
Melting Point: 270 ºC
Other name: 2-Amino-3-hydroxybutanoic acid
Specification:
|
Appearance: |
White crystalline powder. |
|
Assay: |
99.0% to 100.5% |
|
Specific rotation [α]D20: |
-27.6º to –29.0º |
|
Loss on drying: |
0.20% Max. |
|
Chloride [Cl]: |
0.02% max |
|
Ammonium [NH4]: |
0.02% max |
|
Sulfate [SO4]: |
0.02% max |
|
Iron[Fe]: |
10ppm max |
|
Heavy metals [Pb]: |
10ppm max |
|
Arsenic [AS2O3]: |
1ppm max |
|
Other amino acids: |
Not detected |
|
Residue on ignition (sulfated): |
0.1% max |
|
State of solution (transmittance): |
Clear and colorless 98.0% min |
|
PH: |
5.2 to 6.2 |