All Photos(1)

14879

Sigma-Aldrich

BIS-TRIS

BioUltra, ≥99.0% (NT)

All Photos(1)
Synonym(s):
2,2-Bis(hydroxymethyl)-2,2′,2″-nitrilotriethanol, Bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane, 2-Bis(2-hydroxyethyl)amino-2-(hydroxymethyl)-1,3-propanediol
Empirical Formula (Hill Notation):
C8H19NO5
CAS Number:
6976-37-0
Molecular Weight:
209.24
Beilstein:
2205275
EC Number:
230-237-7
MDL number:
MFCD00002853
PubChem Substance ID:
57647226
NACRES:
NA.25

product line

BioUltra

Quality Level

200

assay

≥99.0% (NT)

form

powder

impurities

insoluble matter, passes filter test

ign. residue

≤0.3%

loss

≤0.5% loss on drying, 20 °C (HV)

pH

9.5-11.0 (25 °C, 1 M in H2O)

useful pH range

5.8 - 7.2

pKa (25 °C)

6.5

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

absorption

cut-off at 270 nm in H2O at 1 M

λ

1 M in H2O

UV absorption

λ: 280 nm Amax: 0.15

SMILES string

OCCN(CCO)C(CO)(CO)CO

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

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Application

BIS-TRIS can be used to study biological buffers. BIS-TRIS has been used in a study that synthesized ferritin grafted with temperature-responsive poly(N-isopropylacrylamide) (PIPAAm-ferritin) by a coupling reaction using PIPAAm and ferritin for obtaining stimuli-responsive biomaterials. BIS-TRIS has also been used in a study that synthesized and described the photochemical properties of oligo- ortho –azobenzenes.

Other Notes

Easily compare specifications for BIS-TRIS products with the BIS-TRIS specification table.
Effective buffer for the assay of creatine kinase; Effectively protects hemoglobin during freeze-drying; Catholyte in IEF of 2-D gel electrophoresis.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H318

Precautionary Statements

P280 - P305 + P351 + P338 + P310

Hazard Classifications

Eye Dam. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

More documents

Structure Search

Quotes and Ordering

Bulk Quote-Order Product
Molecules related to Tris and some derivatives that protect haemoglobin during freeze-drying.
P Labrude et al.
The Journal of pharmacy and pharmacology, 32(4), 305-307 (1980-04-01)
J.A.A. Chambers et al.
Electrophoresis, 6, 339-339 (1985)
[Bis(2-hydroxyethyl)amino]tris(hydroxymethyl)methane is an effective buffer for creatine kinase assays.
D A Nealon et al.
Clinical chemistry, 26(10), 1516-1517 (1980-09-01)
Zahra Sabouri et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(25), E2567-E2575 (2014-05-14)
The best-understood mechanisms for achieving antibody self/non-self discrimination discard self-reactive antibodies before they can be tested for binding microbial antigens, potentially creating holes in the repertoire. Here we provide evidence for a complementary mechanism: retaining autoantibodies in the repertoire displayed
Alastair W Skeffington et al.
Plant physiology, 165(2), 866-879 (2014-05-02)
The first step on the pathway of starch degradation in Arabidopsis (Arabidopsis thaliana) leaves at night is the phosphorylation of starch polymers, catalyzed by glucan, water dikinase (GWD). It has been suggested that GWD is important for the control of
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