HEPES, Sodium Salt, ULTROL^® Grade

C₈H₁₇N₂O₄S · Na

260.29

A zwitterionic N-substituted aminosulfonic acid buffer(Absorbance: <0.10 at 260 nm, 1.0 mM, H₂O). Active in the pH range of 6.0 to 8.5. Has a pK_a of 7.6 at 20°C.
A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pK_a of 7.55 at 25°C.
Absorbance (1.0 mM, H₂O, 260 nm):<0.10.

Toxicity: Standard Handling (A)

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany

100

≥99% dry basis (titration)

solid

Calbiochem^®

OK to freeze
desiccated (hygroscopic)

white

7.6

water: 1.0 M

chloride (Cl^-): <0.01%
sulfate (SO₄^2-): <0.05%

heavy metals: <1 ppm

ambient

15-25℃

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

RDZTWEVXRGYCFV-UHFFFAOYSA-M

1 kg in Glass bottle
100, 500 g in Glass bottle

11 - Combustible Solids

WGK 3