Basic information Safety Supplier Related
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BES

Basic information Safety Supplier Related

BES Basic information

Product Name:
BES
Synonyms:
  • BES ULTRAPURE
  • N,N-Bis(2-hydroxyethyl)-2-aminoethanesulphonic acid >99%
  • N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic Acid [Good's buffer component for biological research]
  • N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid, N,N-Bis(2-hydroxyethyl)taurine
  • Bes, 99+%, for biochemistry
  • BES, for biochemistry
  • 2-[N,N-Bis(2-hydroxyethyl)amino]ethanesulfonic acid (BES)
  • Ethanesulfonic acid, 2-[bis(2-hydroxyethyl)amino]-
CAS:
10191-18-1
MF:
C6H15NO5S
MW:
213.25
EINECS:
233-465-5
Product Categories:
  • Biochemistry
  • Good's Buffers
  • Pharmaceutical Intermediates
  • Buffer
Mol File:
10191-18-1.mol
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BES Chemical Properties

Melting point:
150-155 °C
Density 
1.210 (estimate)
refractive index 
1.5500 (estimate)
storage temp. 
room temp
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Powder
color 
White
PH
2.5-5.0 (25℃, 1M in H2O)
PH Range
6.4 - 7.8
pka
7.1(at 25℃) 7.15(at 20℃)
Water Solubility 
Soluble
λmax
λ: 260 nm Amax: 0.095
λ: 280 nm Amax: 0.080
BRN 
1781572
CAS DataBase Reference
10191-18-1(CAS DataBase Reference)
NIST Chemistry Reference
N,n-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid(10191-18-1)
EPA Substance Registry System
Ethanesulfonic acid, 2-[bis(2-hydroxyethyl)amino]- (10191-18-1)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26
WGK Germany 
3
RTECS 
KI7363500
TSCA 
Yes
HS Code 
29221980

MSDS

  • Language:English Provider:BES
  • Language:English Provider:SigmaAldrich
  • Language:English Provider:ACROS
  • Language:English Provider:ALFA
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BES Usage And Synthesis

Chemical Properties

White/clear cryst. powder

Purification Methods

Crystallise BES from aqueous EtOH. [Beilstein 4 IV 3290.]

BESSupplier

Nanjing Search Biotech Co., Ltd Gold
Tel
025-81682922- ;025-85860978-
Email
sales@searchbio.com.cn;sales@searchbio.com.cn
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
21-61259100-
Email
sh@meryer.com
Alfa Aesar
Tel
400-610-6006; 021-67582000
Email
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386 / 800-988-0390
Email
Sales-CN@TCIchemicals.com