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154563

Sigma-Aldrich

Tris Base

≥99.9%, solid, ultrapure grade

Synonym(s):

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

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About This Item

Linear Formula:
NH2C(CH2OH)3
CAS Number:
77-86-1
Molecular Weight:
121.14
Beilstein/REAXYS Number:
741883
EC Number:
201-064-4
MDL number:
MFCD00004679
UNSPSC Code:
12352104
PubChem Substance ID:
329750892

product name

Tris(hydroxymethyl)aminomethane, ultrapure grade, ≥99.9%

grade

ultrapure grade

assay

≥99.9%

form

solid

useful pH range

7-9

pKa (25 °C)

8.1

bp

219-220 °C/10 mmHg (lit.)

mp

167-172 °C (lit.)

solubility

water: 0.66 g/mL, clear, colorless

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

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Application

Buffer and primary pH standard. pKa=8.3 at 20°C. Auxiliary material in pharmaceutical science.

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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Chem. Abstr., 121, 212675r-212675r (1994)
Chimica Oggi, 12, 24-24 (1994)
Aldrichimica Acta, 16, 35-35 (1983)
Corey A Baron et al.
Magnetic resonance in medicine, 73(3), 1075-1084 (2014-04-12)
An acquisition method that does not increase scan time or specific absorption rate is investigated for reducing the deleterious effects of cerebrospinal fluid (CSF) partial volume effects on diffusion tensor imaging (DTI) tractography. It is based on using a shorter
Filippo Bertoli et al.
Small (Weinheim an der Bergstrasse, Germany), 10(16), 3307-3315 (2014-04-17)
Nanoparticles in contact with cells and living organisms generate quite novel interactions at the interface between the nanoparticle surface and the surrounding biological environment. However, a detailed time resolved molecular level description of the evolving interactions as nanoparticles are internalized
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