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Merck
CN

NIST723E

Tris acidimetric

acidimetric, crystals, certified reference material, NIST® SRM® 723e

Synonym(s):

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

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About This Item

Linear Formula:
NH2C(CH2OH)3
CAS Number:
77-86-1
Molecular Weight:
121.14
NACRES:
NA.24
PubChem Substance ID:
329818771
UNSPSC Code:
41116107
MDL number:
MFCD00004679
Beilstein/REAXYS Number:
741883

Key Documents

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Product Name

Tris acidimetric, NIST® SRM® 723e

InChI

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

SMILES string

NC(CO)(CO)CO

InChI key

LENZDBCJOHFCAS-UHFFFAOYSA-N

grade

certified reference material

description

aminopeptidase substrate

form

crystals

packaging

pkg of 50 g

manufacturer/tradename

NIST®

useful pH range

7-9

pKa (25 °C)

8.1

bp

219-220 °C/10 mmHg (lit.)

mp

167-172 °C (lit.)

Quality Level

100

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General description

SRM 723E_cert

SRM 723E_SDS

Other Notes

Example analytes are listed below as a reference. Please download a current certificate at nist.gov/SRM for current analytes and certified values.
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

NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
Trizma is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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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