T6541

Sigma-Aldrich

TES

BioXtra, ≥99.5% (titration)

Synonym(s):
N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid, TES free acid, 2-(2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)aminoethanesulfonic acid
Empirical Formula (Hill Notation):
C6H15NO6S
CAS Number:
Molecular Weight:
229.25
Beilstein/REAXYS Number:
1957061
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25
Pricing and availability is not currently available.

product line

BioXtra

assay

≥99.5% (titration)

form

powder

impurities

Insoluble matter, passes filter test

ign. residue (900 °C)

≤0.1% (as SO4)

loss

≤1% loss on drying, 110°C

pH

3.5-5.0 (20 °C, 1 M in H2O)

useful pH range

6.8 - 8.2

pKa (25 °C)

7.5

mp

~225 °C (dec.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.005%

cation traces

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.02%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.01%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

absorption

≤0.045 at 280 in H2O at 1 M
≤0.055 at 260 in H2O at 1 M

SMILES string

OCC(CO)(CO)NCCS(O)(=O)=O

InChI

1S/C6H15NO6S/c8-3-6(4-9,5-10)7-1-2-14(11,12)13/h7-10H,1-5H2,(H,11,12,13)

InChI key

JOCBASBOOFNAJA-UHFFFAOYSA-N

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NONH for all modes of transport

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Marcel A L M van Assen et al.
Psychological methods, 20(3), 293-309 (2014-11-18)
Publication bias threatens the validity of meta-analytic results and leads to overestimation of the effect size in traditional meta-analysis. This particularly applies to meta-analyses that feature small studies, which are ubiquitous in psychology. Here we develop a new method for...
G S Prins et al.
Fertility and sterility, 46(1), 147-149 (1986-07-01)
Several cryoprotective media currently in use for human sperm cryopreservation have been directly compared with each other by use of a static vapor freezing technique. The TEST-citrate-yolk buffers with glycerol resulted in the highest motility and longevity after thawing; thus...
U Kragh-Hansen et al.
Clinical chemistry, 39(2), 202-208 (1993-02-01)
We examined the suitability of nine organic buffers for studying calcium binding to albumin by equilibrium dialysis. Results obtained with defatted human serum albumin showed that 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) and 2-([tris(hydroxymethyl)methyl] amino)ethanesulfonic acid were superior. Scatchard analysis of the experimental...
W J Holmgren et al.
Journal of in vitro fertilization and embryo transfer : IVF, 6(4), 207-212 (1989-08-01)
Penetration of zona-free hamster oocytes by human spermatozoa after preincubation with BWW medium (standard technique) or a buffer system containing egg yolk (TESTY) was compared by applying both treatments to aliquots of 60 ejaculates from 34 patients. The TESTY-treated spermatozoa...
J L Paquet et al.
British journal of pharmacology, 126(5), 1083-1090 (1999-04-16)
1. The present study addresses the differences in binding profiles and functional properties of the human and rat bradykinin (BK) B2 receptor using various kinin receptor peptide derivatives as well as the non-peptide receptor antagonists WIN 64338 (phosphonium, [[4-[[2-[[bis(cyclohexylamino)methylene]amino]-3-(2-naphtalenyl)1- oxopropyl]amino]-phenyl]-methyl]tributyl...

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