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密理博,391334,BES, Free Acid, ULTROL Grade - CAS 10191-18-1 - Calbiochem
重要规格表
| Empirical Formula | CAS # |
|---|
| C₆H₁₅NO₅S
| 10191-18-1
|
| Description
|
| Overview | 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. |
| Catalogue Number | 391334 |
| Brand Family |
Calbiochem®
|
| Synonyms | N,N-bis-(2-Hydroxyethyl)-2-aminoethanesulfonic Acid |
| References
|
| References | De Graeve, K.G., et al. 1994. J. Appl. Bacteriol. 76, 55.
Chen, C.A., and Okayama, H. 1988. Biotechniques 6, 632. |
| Product Information
|
| CAS number | 10191-18-1 |
| Form | White solid |
| Hill Formula | C₆H₁₅NO₅S |
| Chemical formula | C₆H₁₅NO₅S |
| PKA | 7.12 at 20°C |
| Quality Level | MQ100
|
| Biological Information
|
| Purity | ≥99% by titration (dry basis) |
| Physicochemical Information
|
| Heavy metals | ≤1 ppm |
| Safety Information according to GHS
|
| RTECS | KI7363500 |
| Storage and Shipping Information
|
| Ship Code |
Ambient Temperature Only
|
| Toxicity |
Standard Handling
|
| Storage |
+15°C to +30°C
|
| Do not freeze |
Ok to freeze
|
| Special Instructions | Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 2 weeks at 4°C. |
