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Merck
CN

T6541

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

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About This Item

Empirical Formula (Hill Notation):
C6H15NO6S
CAS Number:
7365-44-8
Molecular Weight:
229.25
UNSPSC Code:
12161700
NACRES:
NA.25
PubChem Substance ID:
24900386
EC Number:
230-906-3
Beilstein/REAXYS Number:
1957061
MDL number:
MFCD00007532

Key Documents

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Product Name

TES, BioXtra, ≥99.5% (titration)

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

SMILES string

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

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

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

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

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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 M Randall et al.
Gastroenterology, 96(5 Pt 1), 1274-1281 (1989-05-01)
Excellent clinical results have been reported with sclerotherapy for control of nonvariceal gastrointestinal hemorrhage. However, there are few controlled or comparative data on different sclerosing agents for treatment of lesions with active arterial bleeding or nonbleeding visible vessels. In a
Yikang Wu et al.
Organic letters, 4(13), 2141-2144 (2002-06-21)
[reaction: see text] In DMSO cleavage of triethylsilyl (TES) ethers by o-iodoxybenzoic acid (IBX) was significantly faster than cleavage of tert-butyldimethylsilyl (TBS) ethers or further oxidation into carbonyl compounds. In most cases, TES protecting groups could be removed in good
M J Taylor et al.
The British journal of ophthalmology, 73(10), 781-791 (1989-10-01)
Preservation solutions for short-term storage of isolated donor corneas for use in penetrating keratoplasty have all been based on tissue culture medium, on the assumption that media designed to maintain the viability of cells at physiological temperatures will also provide
R H Martin et al.
Biology of reproduction, 47(2), 268-270 (1992-08-01)
Human sperm karyotypes can be prepared after fusion of human sperm with Golden hamster oocytes. Most laboratories use one of two methods of sperm capacitation: incubation of freshly-ejaculated sperm in Biggers, Whitten, and Whittingham (BWW) medium for 5-7 h at
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