Skip to Content
Merck

1.08320

N-[Tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid

pKa (20 °C)8.40, ≥99% (alkalimetric)

Synonym(s):

N-[Tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid, TAPS

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

CAS Number:
29915-38-6
Molecular Weight:
243.27
UNSPSC Code:
12161703
EC Index Number:
249-954-1
NACRES:
NA.05
MDL number:
MFCD00007538

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

N-[Tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid, pKa (20 °C)8.40, ≥99% (alkalimetric)

SMILES string

[S](=O)(=O)([O-])CCC[N+H2]C(CO)(CO)CO

InChI

1S/C7H17NO6S/c9-4-7(5-10,6-11)8-2-1-3-15(12,13)14/h8-11H,1-6H2,(H,12,13,14)

InChI key

YNLCVAQJIKOXER-UHFFFAOYSA-N

assay

≥99% (alkalimetric)

pKa (20 °C)

8.40

storage temp.

2-30°C

Quality Level

100

Analysis Note

Assay (alkalimetric)≥ 99 %Identity (IR-spectrum)passes testUV-Absorption (250 nm, 20 g/l, 1 cm, water)≤ 0.05Chloride (Cl)≤ 0.005 %Sulphate (SO₄)≤ 0.005 %Heavy metals (as Pb)≤ 0.0005 %Na (Sodium)≤ 0.005 %Loss on Drying (105°C)≤ 0.2 %Biological buffer, pKa at 20 °C8.40

Application

N-[Tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid buffer substance TAPS. CAS 29915-38-6, molar mass 243.27 g/mol.

General description

buffer substance TAPS

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

230.0 °F - closed cup

flash_point_c

> 110 °C - closed cup

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?

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

Visit the Document Library

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