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A9758

Sigma-Aldrich

ACES

≥99.0% (titration)

Synonym(s):

2-[(2-Amino-2-oxoethyl)azaniumyl]ethanesulfonate, 2-[(Carbamoylmethyl)amino]ethane-1-sulfonic acid, N-(2-Acetamido)-2-aminoethanesulfonic acid, N-(Carbamoylmethyl)-2-aminoethanesulfonic acid, N-(Carbamoylmethyl)taurine

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About This Item

Linear Formula:
H2NCOCH2NHCH2CH2SO3H
CAS Number:
7365-82-4
Molecular Weight:
182.20
Beilstein:
2253770
EC Number:
230-908-4
MDL number:
MFCD00008030
UNSPSC Code:
12161700
PubChem Substance ID:
24891495
NACRES:
NA.25

Quality Level

200

Assay

≥99.0% (titration)

form

crystalline powder

pH

3.0-4.5

useful pH range

6.1-7.5

pKa (25 °C)

6.8

mp

>220 °C (dec.) (lit.)

solubility

water: 0.523 g/mL, clear, colorless

application(s)

diagnostic assay manufacturing

storage temp.

room temp

SMILES string

NC(=O)CNCCS(O)(=O)=O

InChI

1S/C4H10N2O4S/c5-4(7)3-6-1-2-11(8,9)10/h6H,1-3H2,(H2,5,7)(H,8,9,10)

InChI key

DBXNUXBLKRLWFA-UHFFFAOYSA-N

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General description

N-(2-Acetamido)-2-aminoethanesulfonic acid (ACES) is a zwitterionic buffer used in biochemistry and molecular biology research. It is one of the Good′s buffers with a pH range of 6.15 - 8.35. The preferred range of ACES buffer in an aqueous solution is 6.1 - 7.5.

Application

ACES has been used:

  • as a component of buffered charcoal yeast extract (BYCE) agar for plating bacteria culture and Buffered Yeast Extract (BYE) liquid medium to culture bacteria
  • to study the impact of the pH shift on the thermal inactivation of bacterial (Bacillus subtills) spores
  • as a buffer system to study the depolymerization of starch by α-amylase during exposure to hydrostatic pressure.
It is also suitable for use: as buffers for both agarose and polyacrylamide gel electrophoresis; in the isoelectric focusing of proteins; in the analysis of bacterial autolysins in a discontinuous sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) system.

Other Notes

The product is intended for laboratory use only, and it is not suitable for drug, household, or other purposes.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Catalytic activity of $\beta$-amylase from barley in different pressure/temperature domains
Heinz V, et al.
Biotechnology Progress (2005)
High-content assay to measure mitochondrial function and bacterial vacuole size in infected human primary macrophages
Drame M, et al.
STAR protocols (2023)
Shift of pH-value during thermal treatments in buffer solutions and selected foods
Reineke K, et al.
International journal of food properties (2011)
P H Edelstein et al.
Journal of clinical microbiology, 31(12), 3329-3330 (1993-12-01)
Growth of Legionella spp. on buffered charcoal yeast extract medium supplemented with alpha-ketoglutarate and formulated with 3-(n-morpholino)propanesulfonic acid (MOPS), 3-(n-morpholino)-2-hydroxypropanesulfonic acid (MOPSO), or n-(2-acetamido)-2-aminoethanesulfonic acid (ACES) buffer was similar. With three exceptions, growth was no different in buffered yeast extract
Free metal ion depletion by "Good's" buffers. II. N-(2-acetamido)-2-aminoethanesulfonic acid (ACESH): complexes with calcium(II), magnesium(II), manganese(II), cobalt(II), zinc(II), nickel(II), and copper(II).
J M Pope et al.
Analytical biochemistry, 103(2), 214-221 (1980-04-01)
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