Skip to Content
Merck
All Photos(1)

Key Documents

33742

Sigma-Aldrich

Trizma® base

≥99.5%, crystalline, puriss p.a., aminopeptidase substrate

Synonym(s):

2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Tris(hydroxymethyl)aminomethane, Trometamol

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
NH2C(CH2OH)3
CAS Number:
Molecular Weight:
121.14
Beilstein:
741883
EC Number:
MDL number:
UNSPSC Code:
12352104
PubChem Substance ID:

Product Name

Trizma® base, puriss. p.a., buffer substance, ≥99.5%

description

aminopeptidase substrate

grade

puriss. p.a.

Assay

≥99.5%

form

crystalline

impurities

≤0.0005% heavy metals (as Pb)
≤0.5% water (Karl Fischer)

ign. residue

≤0.05% (as SO4)

color

white

pH

10.3-10.8 (0.1 M)

useful pH range

7-9

pKa (25 °C)

8.1

bp

219-220 °C/10 mmHg (lit.)

mp

167-172 °C (lit.)
168-172 °C

solubility

water: soluble (678 g/l at 20 °C)

anion traces

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg

cation traces

Fe: ≤5 mg/kg

SMILES string

NC(CO)(CO)CO

InChI

1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2

InChI key

LENZDBCJOHFCAS-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Other Notes

The pH values of all buffers are temperature- and concentration-dependent. For Tris buffers, pH increases about 0.03 unit per °C decrease in temperature, and decreases 0.03-0.05 unit per ten-fold dilution.
For precise applications, use a carefully calibrated pH meter with a glass/calomel combination electrode.

Legal Information

Trizma is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

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