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14879

Sigma-Aldrich

BIS-TRIS

BioUltra, ≥99.0% (NT)

Synonym(s):

2,2-Bis(hydroxymethyl)-2,2′,2″-nitrilotriethanol, 2-Bis(2-hydroxyethyl)amino-2-(hydroxymethyl)-1,3-propanediol, Bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane

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About This Item

Empirical Formula (Hill Notation):
C8H19NO5
CAS Number:
6976-37-0
Molecular Weight:
209.24
Beilstein/REAXYS Number:
2205275
EC Number:
230-237-7
MDL number:
MFCD00002853
UNSPSC Code:
12161700
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: 0.1

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

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
Lesley Cheng et al.
Kidney international, 86(2), 433-444 (2013-12-20)
Micro RNAs (miRNAs) have been shown to circulate in biological fluids and are enclosed in vesicles such as exosomes; they are present in urine and represent a noninvasive methodology to detect biomarkers for diagnostic testing. The low abundance of RNA
Elizabeth M MacDonald et al.
Disease models & mechanisms, 7(4), 471-481 (2014-02-08)
The purpose of our study was to compare two acquired muscle atrophies and the use of myostatin inhibition for their treatment. Myostatin naturally inhibits skeletal muscle growth by binding to ActRIIB, a receptor on the cell surface of myofibers. Because
[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)
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