L-CYSTEINE |
 |
| HomeLaboratory ChemicalsAmino Acids &
Derivatives |
|
| Article No. |
03140 |
| Purity |
99%% |
| Molecular
Formula |
C3H7NO2S |
| H.S. Code |
2930.9013 |
| Grade |
For
Biochemistry |
| CAS No. |
52-90-4 |
| Molecular
Weight |
121.16 |
| Shelf Life |
5 | |
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| Specifications |
| Assay |
Min 99% |
| Specific rotation |
8.0 - 9.0 deg |
| UV
absorption |
Max 0.5 |
| Loss on drying (at 105 deg C;3
hrs.) |
Max 0.3% |
| Chloride (Cl) |
Max 0.002% |
| Sulphate (SO4) |
Max 0.01% |
| Heavy metals (as Pb) |
Max 0.001% |
| Ammonium (NH4) |
Max 0.01% |
| Foreign amino acids other ninhydrin
positive substances (as glycine) |
Max 0.1% | |
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| |
| Safety Information
and Hazard Symbols |
 |
Symbol:
GHS07
Signal Word: Warning
Hazardous Statement:
H302
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| Revision Date
: 1-Dec-2012 |
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