| Product Name |
L-Cystine dihydrochloride,
≥98.0%, from non-animal source, cell culture tested |
| Product Number |
C6727 |
| Product Brand |
Sigma |
| CAS Number |
30925-07-6 |
| Molecular Formula |
C6H12N2O4S2 · 2HCl |
| Molecular Weight |
313.22 |
| |
| TEST |
SPECIFICATION |
| ORIGIN |
MUST BE NON-ANIMAL SOURCE |
| APPEARANCE |
WHITE CRYSTALLINE POWDER |
| IDENTIFICATION BY IR |
CONSISTENT WITH STRUCTURE |
| SOLUBILITY |
CLEAR COLORLESS SOLUTION AT 50MG/ML IN 2M HYDROCHLORIC ACID |
| SPECIFIC ROTATION * |
-164 TO -174 DEG (20DEGC) |
|
* C = 2 IN 1M HYDROCHLORIC ACID |
| CHLORIDE |
22.18 TO 23.09% |
| AMMONIUM |
< OR = 0.03% |
| SULFATE |
< OR = 0.030% |
| IRON |
< OR = 30 PPM |
| HEAVY METALS |
< OR = 10 PPM |
| ARSENIC |
< OR = 2 PPM |
| LOSS ON DRYING |
< OR = 0.30% |
| RESIDUE ON IGNITION |
< OR = 0.10% |
| RESIDUAL SOLVENTS |
MEETS THE REQUIREMENTS |
| NINHYDRIN-POSITIVE SUBSTANCES (OTHER AMINO ACIDS) |
CONFORMS |
| ASSAY (DRY BASIS) |
98.0 TO 102.0% |
| ENDOTOXIN ASSAY |
< OR = 1 EU/MG |
| CELL CULTURE TEST |
PASS |
| RECOMMENDED RETEST |
4 YEARS |
| DOCUMENT # |
C6727/09/22/08/3 |
Certificate of Analysis
Certificate of Origin
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