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14853

Sigma-Aldrich

BES

BioXtra, for molecular biology, ≥99.5% (T)

Synonym(s):

N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid, N,N-Bis(2-hydroxyethyl)taurine

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About This Item

Empirical Formula (Hill Notation):
C6H15NO5S
CAS Number:
10191-18-1
Molecular Weight:
213.25
Beilstein/REAXYS Number:
1781572
EC Number:
233-465-5
MDL number:
MFCD00007533
UNSPSC Code:
12161700
PubChem Substance ID:
57647223
Pricing and availability is not currently available.

grade

Molecular Biology
for molecular biology

product line

BioXtra

assay

≥99.5% (T)

form

powder or crystals

impurities

DNases, none detected
 RNases, none detected
 insoluble matter, passes filter test
 phosphatases, none detected
 proteases, none detected

ign. residue (900°C)

≤0.05%

pH

2.5-5.0 (25 °C, 1 M in H2O)

useful pH range

6.4-7.8

pKa (25 °C)

7.1

solubility

H2O: 1 M at 20 °C, clear, colorless

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Application

BES, or N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid, can be used to study molecular biology, biological buffers, molecular biology reagents and zwitterionic compounds. BES has been used to study versatile catalyst precursors for mild hydrocarboxylation of alkanes to carboxylic acids. BES has also been used to determine that saline and buffers minimize the action of interfering factors in the bacterial endotoxins test.

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCD5280
BCBZ8274
BCBX0079
BCBW1229
BCBV2213

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Marina V Kirillova et al.
Inorganic chemistry, 51(9), 5224-5234 (2012-04-10)
The facile aqueous medium reactions of copper(II) nitrate with BES biobuffer [(HOCH(2)CH(2))(2)N(CH(2)CH(2)SO(3)H), hereinafter referred as H(3)bes] in the presence of various benzenecarboxylic acids [benzoic (Hba), 3-hydroxybenzoic (Hhba), and 3,5-dihydroxybenzoic (Hdhba) acid] and lithium hydroxide gave rise to the self-assembly generation
Yingjie Zhang et al.
ACS nano, 9(10), 10445-10452 (2015-09-25)
Artificial solids composed of semiconductor quantum dots (QDs) are being developed for large-area electronic and optoelectronic applications, but these materials often have defect-induced in-gap states (IGS) of unknown chemical origin. Here we performed scanning probe based spectroscopic analysis and density
Yingwen Cheng et al.
Advanced materials (Deerfield Beach, Fla.), 27(42), 6598-6605 (2015-10-01)
An interface promoted approach is developed for guiding the design of stable and high capacity materials for Mg batteries using SnSb alloys as model materials. Experimental and theoretical studies reveal that the SnSb alloy has exceptionally high reversible capacity (420
Emma J Gagen et al.
FEMS microbiology letters, 362(14) (2015-06-26)
Molecular information suggests that there is a broad diversity of acetogens in the rumen, distinct from any currently isolated acetogens. We combined molecular analysis with enrichment culture techniques to investigate this diversity further. Methane-inhibited, hydrogenotrophic enrichment cultures produced acetate as
R N Roy et al.
Cryobiology, 22(6), 589-600 (1985-12-01)
Information is given concerning two standard buffer solutions suitable as pH references in 30, 40, and 50 mass% dimethyl sulfoxide (DMSO)/H2O mixed solvents at subzero temperatures from -20 to 0 degrees C, with the intention of establishing a pH (designated
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