| Product Name |
L-Cystine,
reagent grade, Sigma Grade, crystalline |
| Product Number |
C8755 |
| Product Brand |
Sigma |
| CAS Number |
56-89-3 |
| Molecular Formula |
[-SCH2CH(NH2)CO2H]2 |
| Molecular Weight |
240.30 |
| |
| TEST |
SPECIFICATION |
| APPEARANCE |
WHITE TO OFF-WHITE POWDER |
| SOLUBILITY |
CLEAR COLORLESS TO FAINT YELLOW SOLUTION AT 50MG/ML IN 1MHYDROCHLORIC ACID |
| IR SPECTRUM |
CONSISTENT WITH STRUCTURE |
| CARBON |
29.4 TO 30.6% |
| NITROGEN |
11.4 TO 11.9% |
| SPECIFIC ROTATION |
CONSISTENT WITH OPTICAL ISOMER |
| PURITY BY THIN LAYER CHROMATOGRAPHY |
NLT 98% |
| RECOMMENDED RETEST |
5 YEARS |
| DOCUMENT # |
C8755/09/22/99/3 |
Certificate of Analysis
Certificate of Origin
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