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1.08320

Millipore

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

pKa (20 °C)8.40, ≥99% (alkalimetric)

Synonym(s):
TAPS, N-[Tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid
CAS Number:
Molecular Weight:
243.27
MDL number:
EC Index Number:
249-954-1

Quality Level

assay

≥99% (alkalimetric)

pKa (20 °C)

8.40

storage temp.

2-30°C

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 Code

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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