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Merck
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Documenti fondamentali

T6541

Sigma-Aldrich

TES

BioXtra, ≥99.5% (titration)

Sinonimo/i:

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

Formula empirica (notazione di Hill):
C6H15NO6S
Numero CAS:
Peso molecolare:
229.25
Beilstein:
1957061
Numero CE:
Numero MDL:
Codice UNSPSC:
12161700
ID PubChem:
NACRES:
NA.25

Nome Commerciale

BioXtra

Saggio

≥99.5% (titration)

Stato

powder

Impurezze

Insoluble matter, passes filter test

Residuo alla calcinazione (900 °C)

≤0.1% (as SO4)

Perdita

≤1% loss on drying, 110°C

pH

3.5-5.0 (20 °C, 1 M in H2O)

Intervallo di pH utile

6.8-8.2

pKa (25 °C)

7.5

Punto di fusione

~225 °C (dec.)

Solubilità

H2O: 1 M at 20 °C, clear, colorless

Anioni in tracce

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

Cationi in tracce

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%

Assorbimento

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

Stringa SMILE

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)
JOCBASBOOFNAJA-UHFFFAOYSA-N

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Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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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
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
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
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
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

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