391334
BES, Free Acid, ULTROL® Grade
N,N-bis-(2-Hydroxyethyl)-2-aminoethanesulfonic Acid
For general questions please contact our Customer Service:
Merck KGaA
Frankfurter Str. 250
64293 Darmstadt
Germany
Phone: +49 6151 72-0
Fax: +49 6151 72 2000
24 May 2012
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BES buffer is suitable for use in systems where a calcium phosphate-DNA complex formation is desirable. Chen and Okayama described an improved transfection system for the stable transformation of cells with plasmid DNA using BES buffer. The gradual formation of the calcium phosphate-DNA complex and its slow precipitation onto cells appears to be the most critical factor contributing to the high efficiency of stable transformations.
Absorbance (100 mM, 260 nm):≤0.05.
| Product information | |||
|---|---|---|---|
| Form | White solid | ||
| Molar mass | 213.3 | ||
| Purity | ≥99% by titration (dry basis) | ||
| Heavy metals | ≤1 ppm | ||
| PKA | 7.12 at 20°C | ||
| Solubility | H2O | ||
| Chemical formula | C6H15NO5S | ||
| RTECS | KI7363500 | ||
| CAS number | 10191-18-1 | ||
| Store and ship information | |||
|---|---|---|---|
| Storage | +15°C to +30°C | ||
| Ship |
Ambient Temperature Only
Standard Handling |
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