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| Product Name | Nigrosin water soluble, powder, cell culture tested |
| Product Number | N4763 |
| Product Brand | Sigma |
| CAS Number | 8005-03-6 |
| TEST | SPECIFICATION |
| APPEARANCE | BROWN TO BLACK POWDER |
| SOLUBILITY | DARK BLUE TO DARK VIOLET SOLUTION AT 1MG/ML IN WATER |
| ULTRAVIOLET/VISIBLE SPECTRUM | E1% = APPROX. 250 AT LAMBDA MAX APPROX. 575NM IN 50% ETHANOL |
| CELL CULTURE TEST | PASS |
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