Skip to Content
Merck
All Photos(3)

Key Documents

View All Documentation

T6541

Sigma-Aldrich

TES

BioXtra, ≥99.5% (titration)

Synonym(s):

2-[(2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]ethanesulfonic acid, N-[Tris(hydroxymethyl)methyl]-2-aminoethanesulfonic acid, TES free acid

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Empirical Formula (Hill Notation):
C6H15NO6S
CAS Number:
7365-44-8
Molecular Weight:
229.25
Beilstein:
1957061
EC Number:
230-906-3
MDL number:
MFCD00007532
UNSPSC Code:
12161700
PubChem Substance ID:
24900386
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

Looking for similar products? Visit Product Comparison Guide

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
081M5409
081M5409V
096K5456
069K4799
125H5737

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
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
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
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
N Sugiyama et al.
Molecular reproduction and development, 58(1), 30-38 (2001-01-06)
The growth, differentiation, and death/survival of spermatogonia are precisely regulated for the proper production of spermatozoa. We have previously shown that Bcl-2 ectopically expressed in spermatogonia caused the inhibition of normal spermatogonial apoptosis and the subsequent failure of differentiation in
View All Related Papers

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service