羟乙基哌嗪乙硫磺酸

C₈H₁₈N₂O₄S

238.30

883043

MFCD00006158

Absorbance (1.0 M, H₂O, 260 nm):≤0.05.

Absorbance (1.0 M, H₂O, 280 nm): ≤0.04
A zwitterionic N-substituted aminosulfonic acid buffer. HEPES has its maximum buffering capacity very near the pH of mammalian tissue fluids (pK_a of 7.31 at 37°C). Exhibits no metal binding and has a small temperature dependent ΔpKa of -0.014/°C.
A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pK_a of 7.48 at 25°C.

Toxicity: Irritant (B)

Following reconstitution, store at room temperature (20°C). Stock solutions are stable for up to 6 months at 20°C.

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)

crystalline powder

Calbiochem^®

OK to freeze

white

7.5

water: 1 M

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

Na: ≤0.1%
heavy metals: ≤1 ppm

ambient

15-25℃

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

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)

JKMHFZQWWAIEOD-UHFFFAOYSA-N

25 g in Plastic ampoule
5 kg in Fibre carton
100, 500 g in Glass bottle
1 kg in Glass bottle

13 - Non Combustible Solids

WGK 1