MedKoo Cat#: 464446 | Name: BES
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

BES is a useful secondary standard biochemical buffer. Useful pH range for BES is 6.4 to 7.8. It is useful for diagnostic assay manufacturing industry. BES, a sulfonic acid-containing cross-linking agent, induces cross-linking between sulfonated polyimide chains in sulfonated polyimide membranes.

Chemical Structure

BES
CAS#10191-18-1

Theoretical Analysis

MedKoo Cat#: 464446

Name: BES

CAS#: 10191-18-1

Chemical Formula: C6H15NO5S

Exact Mass: 213.0671

Molecular Weight: 213.25

Elemental Analysis: C, 33.79; H, 7.09; N, 6.57; O, 37.51; S, 15.03

Price and Availability

Size Price Availability Quantity
5g USD 250.00 2 Weeks
25g USD 450.00 2 Weeks
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Related CAS #
No Data
Synonym
BES; NSC 166667; NSC-166667; NSC166667;
IUPAC/Chemical Name
2-(bis(2-hydroxyethyl)amino)ethane-1-sulfonic acid
InChi Key
AJTVSSFTXWNIRG-UHFFFAOYSA-N
InChi Code
InChI=1S/C6H15NO5S/c8-4-1-7(2-5-9)3-6-13(10,11)12/h8-9H,1-6H2,(H,10,11,12)
SMILES Code
OCCN(CCS(=O)(O)=O)CCO
Appearance
Solid powder
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
To be determined
Shelf Life
>2 years if stored properly
Drug Formulation
To be determined
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 213.25 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
1: Roy RN, Roy LN, Stegner JM, Sechler SA, Jenkins AL, Krishchenko R, Henson IB. Buffer standards for the physiological pH of N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES) from (278.15 to 328.15) K. J Electroanal Chem (Lausanne). 2011 Dec 1;663(1):8-13. doi: 10.1016/j.jelechem.2011.09.019. PMID: 22247703; PMCID: PMC3254107. 2: Fujita Y, Tokunaga T, Kataoka H. Saline and buffers minimize the action of interfering factors in the bacterial endotoxins test. Anal Biochem. 2011 Feb 1;409(1):46-53. doi: 10.1016/j.ab.2010.10.014. Epub 2010 Oct 14. PMID: 20951111. 3: Kvasnicka F, Jockovic N, Dräger B, Sevcík R, Cepl J, Voldrich M. Electrophoretic determination of calystegines A3 and B2 in potato. J Chromatogr A. 2008 Feb 15;1181(1-2):137-44. doi: 10.1016/j.chroma.2007.12.037. Epub 2007 Dec 23. PMID: 18178214. 4: Stellwagen NC, Bossi A, Gelfi C, Righetti PG. DNA and buffers: are there any noninteracting, neutral pH buffers? Anal Biochem. 2000 Dec 1;287(1):167-75. doi: 10.1006/abio.2000.4848. PMID: 11078596.