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B9754

Sigma-Aldrich

BIS-TRIS

≥98.0% (titration)

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:
24892155
NACRES:
NA.25

Quality Level

400

assay

≥98.0% (titration)

form

crystalline powder

storage condition

dry at room temperature

technique(s)

UV/Vis spectroscopy: suitable
electrophoresis: suitable

color

white

useful pH range

5.8-7.2

pKa (25 °C)

6.5

solubility

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

suitability

suitable for Western blot
suitable for column chromatography of proteins

application(s)

diagnostic assay manufacturing
general analytical
microbiology

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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General description

Bis-tris methane, also known as BIS-TRIS or BTM, is a zwitterionic buffering agent widely employed in biochemical and biological research. It functions effectively in aqueous solutions within a pH range of 5.8 to 7.2 and demonstrates minimal shifts in its dissociation constant. Further, it can be used as a substitute for the highly toxic buffer cacodylate and is also recognized for its ability to form complexes with different metals.

Application

Bis-Tris has been used :
  • as a buffer for Electrophoresis
  • as a component of transfer buffer for Western Blotting

Features and Benefits

  • Suitable for Biological and Biochemical Research
  • Effective Buffering from pH 5.8-7.2 (25 °C) with a pKa of 6.5 (25 °C)

Other Notes

For additional information on our range of Biochemicals, please complete this form.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

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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