| Product Name |
L-Cysteine,
≥98%, from non-animal source, cell culture tested |
| Product Number |
C7352 |
| Product Brand |
Sigma |
| CAS Number |
52-90-4 |
| Molecular Formula |
HSCH2CH(NH2)CO2H |
| Molecular Weight |
121.16 |
| |
| TEST |
SPECIFICATION |
| ORIGIN |
MUST BE NON-ANIMAL SOURCE |
| APPEARANCE |
WHITE CRYSTALLINE POWDER |
| IDENTIFICATION BY IR |
COMPARES TO REFERENCE STANDARD |
| SOLUBILITY |
CLEAR COLORLESS SOLUTION AT 0.5G TO 20ML OF WATER |
| SPECIFIC ROTATION * |
+8.3 TO +9.5 DEG (20 DEG C) |
|
* C = 8 IN 1M HYDROCHLORIC ACID |
| CHLORIDE |
NMT 0.040% |
| AMMONIUM |
NMT 0.02% |
| SULFATE |
NMT 0.028% |
| IRON |
NMT 10 PPM |
| HEAVY METALS |
NMT 10 PPM |
| ARSENIC |
NMT 1 PPM |
| LOSS ON DRYING |
NMT 0.50% |
| RESIDUE ON IGNITION |
NMT 0.05% |
| NINHYDRIN-POSITIVE SUBSTANCES (OTHER AMINO ACIDS) |
CONFORMS |
| PH TEST |
4.5 TO 5.5 (2.5% IN WATER) |
| ASSAY (DRY BASIS) |
98.0 TO 101.0% |
| ENDOTOXIN ASSAY |
<1 EU/MG |
| CELL CULTURE TEST |
PASS |
| EXPIRATION DATE |
24 MONTHS |
|
DOCUMENT # C7352:05/03-3 |
Certificate of Analysis
Certificate of Origin
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