HEPES

Nombre del producto

HEPES, BioXtra, pH 5.0-6.5 (1 M in H₂O), ≥99.5% (titration)

InChI key

JKMHFZQWWAIEOD-UHFFFAOYSA-N

InChI

1S/C8H18N2O4S/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14/h11H,1-8H2,(H,12,13,14)

SMILES string

OCCN1CCN(CC1)CCS(O)(=O)=O

product line

BioXtra

assay

≥99.5% (titration)

form

powder

impurities

Insoluble matter, passes filter test

ign. residue (900°C)

≤0.1% (as SO₄)

loss

≤1.0% loss on drying, 110°C

pH

5.0-6.5 (1 M in H₂O)

useful pH range

6.8-8.2

pKa (25 °C)

7.5

solubility

H₂O: 1 M, clear, colorless

anion traces

chloride (Cl^-): ≤0.05%

cation traces

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

absorption

≤0.035 at 280 in H₂O at 1 M
≤0.045 at 260 in H₂O at 1 M

application(s)

diagnostic assay manufacturing

Quality Level

400