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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

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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
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Quality Segment

100

assay

≥99% (alkalimetric)

pKa (20 °C)

8.40

storage temp.

2-30°C

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

General description

buffer substance TAPS

Application

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

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

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

>230.0 °F - closed cup

flash_point_c

> 110 °C - closed cup

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