| Product Name |
DL-Dithiothreitol,
SigmaUltra, ≥99.0% (titration) |
| Product Number |
D5545 |
| Product Brand |
SIAL |
| CAS Number |
3483-12-3 |
| Molecular Weight |
154.25 |
| Storage Temp |
2-8°C |
|
| TEST |
SPECIFICATION |
| Appearance (Color) |
White |
| Appearance (Form) |
Powder |
| Solubility (Color) |
Colorless |
| Solubility (Turbidity) |
Clear |
| |
0.1 M in H2O, 20 to 25 deg C |
| Insoluble Matter |
Pass |
| Impurity |
≤0.3 % |
| |
As 4,5-dihydroxy-1,2-dithiane |
| Sulfate |
≤0.005 % |
| Aluminum (AL) |
≤0.0005 % |
| % Arsenic |
≤0.0001 |
| Barium |
≤0.0005 % |
| Bismuth ( Bi) |
≤0.0005 % |
| Calcium (Ca) |
≤0.001 % |
| Cadmium (Cd) |
≤0.0005 % |
| Cobalt ( Co) |
≤0.0005 % |
| Chromium (Cr) |
≤0.0005 % |
| Copper (Cu) |
≤0.0005 % |
| Iron (Fe) |
≤0.0005 % |
| Potassium (K) |
≤0.005 % |
| Lithium |
≤0.0005 % |
| Magnesium (Mg) |
≤0.0005 % |
| Manganese (Mn) |
≤0.0005 % |
| Molybdenum (Mo) |
≤0.0005 % |
| Sodium (Na) |
≤0.1 % |
| Nickel |
≤0.0005 % |
| Lead (Pb) |
≤0.0005 % |
| Strontium (Sr) |
≤0.0005 % |
| Zinc (Zn) |
≤0.0005 % |
| A260 UV Absorption |
≤0.400 |
| |
0.1 M in H2O |
| A280 UV Absorption |
≤0.100 |
| |
0.1 M in H2O |
| pH |
4.0 - 6.0 |
| |
0.1 M in H2O, 20 to 25 deg C |
| Titration by Iodine |
≥99.0 % |
| Recommended Retest Period |
------------------------------ |
| |
4 years |
