A7949
Sigma

ACES

SigmaUltra, ≥99.0% (titration)

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Synonym

N-(2-Acetamido)-2-aminoethanesulfonic acid

N-(Carbamoylmethyl)-2-aminoethanesulfonic acid

N-(Carbamoylmethyl)taurine

Molecular Formula

H₂NCOCH₂NHCH₂CH₂SO₃H

Molecular Weight

182.20

CAS Number

7365-82-4

Beilstein Registry Number

2253770

MDL number

MFCD00008030

PubChem Substance ID

24891297

EG/EC Number

230-908-4

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Properties

grade

SigmaUltra

assay

≥99.0% (titration)

total impurities

≤0.005% Phosphorus (P)

≤0.1% Insoluble matter

ign. residue

≤0.1%

useful pH range

6.1 - 7.5

pKa (25 °C)

6.8

>220 °C (dec.)(lit.)

solubility

H₂O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl^-): ≤0.05%

cation traces

Al: ≤0.005%

Ca: ≤0.0005%

Cu: ≤0.0005%

Fe: ≤0.002%

K: ≤0.005

Mg: ≤0.0005%

NH₄⁺: ≤0.05%

Pb: ≤0.001%

Zn: ≤0.0005%

abs.

A0.1M/260, H₂O ≤0.05

A0.1M/280, H₂O ≤0.05

References

Merck

Merck 13,37

Beilstein

Beil. 4,III,1707

reference

FT-IR 2 (1), 1520:B / FT-IR 1 (1), 895:A / IR-Spectra (3), 538:C / IR-Spectra (2), 476:B / NMR-Reference 2 (2), 795:D / RegBook 1 (1), 1065:M / Sigma FT-IR 1 (2), 51:A / Structure Index 1, 166:B:2

Safety

WGK Germany

Related Categories

... Biological Buffers > Buffers A to Z

... Biological Buffers > Good's Buffers

... Biological Buffers > SigmaUltra Buffers

FT-IR Raman

MSDS

Specification Sheet

Certificate of Analysis

More Information