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391334 BES, Free Acid, ULTROL® Grade - CAS 10191-18-1 - Calbiochem

BES buffer is suitable for use in systems where a calcium phosphate-DNA complex formation is desirable.

BES, Free Acid, ULTROL® Grade - CAS 10191-18-1 - Calbiochem: MSDS (material safety data sheet) o SDS, certificato d’analisi (CoA) e certificato di qualità (CoQ), dossier, brochure e altri documenti disponibili.

Sinonimi: N,N-bis-(2-Hydroxyethyl)-2-aminoethanesulfonic Acid

391334
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Panoramica

Replacement Information

Tabella delle specifiche principali

CAS #Empirical Formula
10191-18-1C₆H₁₅NO₅S

Products

Numero di catalogoConfezionamento Qtà/conf
391334-100GM Bottiglia di vetro 100 gm
391334-25GM Fiala di plastica 25 gm
Description
OverviewBES 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 Number391334
Brand Family Calbiochem®
SynonymsN,N-bis-(2-Hydroxyethyl)-2-aminoethanesulfonic Acid
References
ReferencesDe Graeve, K.G., et al. 1994. J. Appl. Bacteriol. 76, 55.
Chen, C.A., and Okayama, H. 1988. Biotechniques 6, 632.
Product Information
CAS number10191-18-1
FormWhite solid
Hill FormulaC₆H₁₅NO₅S
Chemical formulaC₆H₁₅NO₅S
PKA7.12 at 20°C
Quality LevelMQ100
Applications
Biological Information
Purity≥99% by titration (dry basis)
Physicochemical Information
Heavy metals≤1 ppm
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
RTECSKI7363500
Safety Information
Product Usage Statements
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 InstructionsFollowing reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 2 weeks at 4°C.
Packaging Information
Transport Information
Supplemental Information
Specifications
Global Trade Item Number
Numero di catalogo GTIN
391334-100GM 07790788058364
391334-25GM 04055977190083

Documentation

BES, Free Acid, ULTROL® Grade - CAS 10191-18-1 - Calbiochem MSDS

Titolo

Scheda di sicurezza (MSDS) 

BES, Free Acid, ULTROL® Grade - CAS 10191-18-1 - Calbiochem Certificati d'Analisi

TitoloNumero di lotto
391334

Riferimenti bibliografici

Panoramica delle referenze
De Graeve, K.G., et al. 1994. J. Appl. Bacteriol. 76, 55.
Chen, C.A., and Okayama, H. 1988. Biotechniques 6, 632.
Scheda tecnica

Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.

Revision14-July-2008 RFH
SynonymsN,N-bis-(2-Hydroxyethyl)-2-aminoethanesulfonic Acid
DescriptionBES buffer is suitable for use in systems where a calcium phosphate-DNA complex formation is desirable (Absorbance: <0.05 at 260 nm, 100 mM). Chen and Okayama describe an improved transfection system for the stable transformation of cells with plasmid DNA using BES buffer. The slow formation appears to be the most critical factor contributing to the high efficiency of stable transformations. Has a pKa of 7.12 at 20°C.
FormWhite solid
CAS number10191-18-1
RTECSKI7363500
Chemical formulaC₆H₁₅NO₅S
Purity≥99% by titration (dry basis)
SolubilityH₂O (1 mg/ml)
Storage +15°C to +30°C
Do Not Freeze Ok to freeze
Special InstructionsFollowing reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 2 weeks at 4°C.
Toxicity Standard Handling
ReferencesDe Graeve, K.G., et al. 1994. J. Appl. Bacteriol. 76, 55.
Chen, C.A., and Okayama, H. 1988. Biotechniques 6, 632.