1.15230
3-[4-(2-Hydroxyethyl)-1-piperazinyl]-propanesulfonic acid
pKa (20 °C)8.0, ≥99% (acidimetric)
Synonym(s):
3-[4-(2-Hydroxyethyl)-1-piperazinyl]-propanesulfonic acid, HEPPS
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About This Item
Empirical Formula (Hill Notation):
C9H20N2O4S
CAS Number:
Molecular Weight:
252.33
EC Index Number:
240-198-8
UNSPSC Code:
12161703
MDL number:
assay
≥99% (acidimetric)
pKa (20 °C)
8.0
storage temp.
2-30°C
InChI
1S/C9H20N2O4S/c12-8-7-11-5-3-10(4-6-11)2-1-9-16(13,14)15/h12H,1-9H2,(H,13,14,15)
InChI key
OWXMKDGYPWMGEB-UHFFFAOYSA-N
General description
buffer substance HEPPS
Analysis Note
Assay (acidimetric): ≥ 99 %
Identity (Raman-spectrum): passes test
UV-Absorption (250 nm, 20 g/l, 1 cm, water): ≤ 0.05
Chloride (Cl): ≤ 0.005 %
Sulphate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Loss on Drying (105°C): ≤ 0.5 %
Biological buffer, pKa at 20 °C: 8.0
Identity (Raman-spectrum): passes test
UV-Absorption (250 nm, 20 g/l, 1 cm, water): ≤ 0.05
Chloride (Cl): ≤ 0.005 %
Sulphate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Loss on Drying (105°C): ≤ 0.5 %
Biological buffer, pKa at 20 °C: 8.0
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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