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BES

BES
BES
CAS No.
10191-18-1
Chemical Name:
BES
Synonyms
BES;Nsc166667;BES ULTRAPURE;BES, SIGMAULTRA;bes(bufferingagent);N,N-Bis(2-hydroxyeth;BES buffer free acid;BES,BIOLOGICALBUFFER;BES, for biochemistry;BES, Free Acid, ULTROL
CBNumber:
CB9216172
Molecular Formula:
C6H15NO5S
Formula Weight:
213.25
MOL File:
10191-18-1.mol

BES Properties

Melting point:
150-155 °C
Density 
1.210 (estimate)
refractive index 
1.5500 (estimate)
storage temp. 
Store at RT.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Powder
color 
White
PH Range
6.4 - 7.8
PH
2.5-5.0 (25℃, 1M in H2O)
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)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26
WGK Germany  3
RTECS  KI7363500
TSCA  Yes
HS Code  29221980
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

BES price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 14853 BES BioXtra, for molecular biology, ≥99.5% (T) 10191-18-1 50g $208 2018-11-13 Buy
Sigma-Aldrich 14853 BES BioXtra, for molecular biology, ≥99.5% (T) 10191-18-1 250g $766 2018-11-13 Buy
TCI Chemical B0909 N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic Acid [Good's buffer component for biological research] >98.0%(T) 10191-18-1 25g $32 2018-11-22 Buy
TCI Chemical B0909 N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic Acid [Good's buffer component for biological research] >98.0%(T) 10191-18-1 500g $253 2018-11-22 Buy
Alfa Aesar A16092 BES, 99% 10191-18-1 100g $78.4 2018-11-13 Buy

BES Chemical Properties,Uses,Production

Chemical Properties

White/clear cryst. powder

Purification Methods

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

BES Preparation Products And Raw materials

Raw materials

Preparation Products


BES Suppliers

Global( 180)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20786 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1374 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32651 55
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 10967 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 19990 58
Nanjing Search Biotech Co., Ltd +86-25-85860978,81682922,13515111588,18905151602
+86-25-85860962 sales@searchbio.com.cn China 176 68
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40395 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30291 84

View Lastest Price from BES manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-16 BES
10191-18-1
US $8.00 / kg 1kg 99% 10MT career henan chemical co

BES Spectrum


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