| Product Name |
HEPES,
Biotechnology Performance Certified, ≥99.5% (titration), cell culture tested |
| Product Number |
H4034 |
| Product Brand |
Sigma |
| CAS Number |
7365-45-9 |
| Molecular Formula |
C8H18N2O4S |
| Molecular Weight |
238.30 |
| |
| TEST |
SPECIFICATION |
| APPEARANCE |
WHITE CRYSTALLINE POWDER |
| SOLUBILITY |
CLEAR COLORLESS SOLUTION AT 500MG/ML IN WATER |
| WATER BY KARL FISCHER |
NMT 0.1% |
| UV ABSORBANCE |
NMT 0.05 AT 290NM (33%W/W) |
|
NMT 0.05 AT 260NM (0.1M) |
|
NMT 0.05 AT 280NM (0.1M) |
| HEAVY METALS |
NMT 5 PPM (ASLEAD) |
| IRON (FE) |
NMT 5 PPM |
| PURITY BY SODIUM HYDROXIDE TITRATION * |
NLT 99.5% |
| IR SPECTRUM |
CONSISTENT WITH STRUCTURE |
| RNASE, DNASE, NICKASE AND PROTEASE |
NONE DETECTED |
| ENDOTOXIN ASSAY |
NMT 0.1 EU/MG |
| STANDARD PLATE COUNT |
NMT 100 CFU/G |
| CELL CULTURE TEST |
PASS |
| RECOMMENDED RETEST |
4 YEARS |
| NOTE |
* CORRECTED FOR WATER CONTENT |
|
DOCUMENT # H4034/08/25/99/1 |
Certificate of Analysis
Certificate of Origin
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