MilliporeSigma
All Photos(1)

14879

Sigma-Aldrich

BIS-TRIS

BioUltra, ≥99.0% (NT)

Sign Into View Organizational & Contract Pricing

Select a Size

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
Empirical Formula (Hill Notation):
C8H19NO5
CAS Number:
Molecular Weight:
209.24
Beilstein:
2205275
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

product line

BioUltra

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
B7535B9754RDD013
BIS-TRIS BioUltra, ≥99.0% (NT)

Sigma-Aldrich

14879

BIS-TRIS

Premium Grade
BIS-TRIS BioXtra, ≥98.0% (titration)

Sigma-Aldrich

B7535

BIS-TRIS

Premium Grade
BIS-TRIS ≥98.0% (titration)

Sigma-Aldrich

B9754

BIS-TRIS

-
BIS-TRIS anhydrous, free-flowing, Redi-Dri™, ≥98.0%

Sigma-Aldrich

RDD013

BIS-TRIS

-
assay

≥99.0% (NT)

assay

≥98.0% (titration)

assay

≥98.0% (titration)

assay

≥98.0%

form

powder

form

powder

form

crystalline powder

form

crystalline powder

impurities

insoluble matter, passes filter test

impurities

≤0.005% Phosphorus (P), ≤0.1% Insoluble matter

impurities

-

impurities

≤1.0% water (Karl Fischer)

pH

9.5-11.0 (25 °C, 1 M in H2O)

pH

9.0-10.1 (20-25 °C, 1 M in H2O)

pH

-

pH

9.0-10.1 (20-25 °C, 1 M in water)

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

H2O: 1 M, clear, colorless

solubility

H2O: 500 mg/mL, clear, colorless to very faintly yellow

solubility

water: 500 mg/mL, clear, colorless to faint yellow or tan

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

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Dam. 1

Storage Class Code

11 - 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

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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 4

1 of 4

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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service