MilliporeSigma
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391335

Millipore

BIS-Tris, ULTROL® Grade

A zwitterionic buffer that exhibits only a very small shift in dissociation constant with respect to temperature.

Synonym(s):
[ bis(2-Hydroxyethyl)imino]- tris(hydroxymethyl)methane, [bis(2-Hydroxyethyl)imino]-tris(hydroxymethyl)methane
Empirical Formula (Hill Notation):
C8H19NO5
CAS Number:
Molecular Weight:
209.24

Quality Level

assay

≥99% (titration)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

white

pKa (20 °C)

6.5

solubility

water: soluble

cation traces

heavy metals: <3 ppm

shipped in

ambient

storage temp.

15-25°C

InChI

1S/C8H19NO5/c10-3-1-9(2-4-11)8(5-12,6-13)7-14/h10-14H,1-7H2

InChI key

OWMVSZAMULFTJU-UHFFFAOYSA-N

General description

A zwitterionic buffer that exhibits only a very small shift in dissociation constant with respect to temperature. Useful in the pH 5.8-7.3 range. Has a pKa of 6.50 at 25°C. Suitable for fractionation of hemoglobin.
Absorbance (100 mM, H2O, 280 nm):≤0.04.
An inert, zwitterionic buffer that exhibits only a very small shift in dissociation constant with respect to temperature (absorbance: <0.04 at 280 nm, 100 mM, H2O). Suitable for fractionation of hemoglobin. Has a pKa of 6.5 at 25°C.

Packaging

100 g in Glass bottle
1 kg in Glass bottle

Warning

Toxicity: Standard Handling (A)

Other Notes

Nealon, D.A., et al. 1980. Clin Chem.26, 1516.
Morin, L.G. 1977. Clin. Chem.23, 1569.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Dam. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

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Certificate of Quality

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