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475893

Millipore

MES

ULTROL® Grade, ≥99% dry basis (titration), zwitterionic buffer useful in pH range 5.5-6.5

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Synonym(s):
MES, Free Acid, ULTROL® Grade, 2-(N-Morpholino)ethanesulfonic Acid
Empirical Formula (Hill Notation):
C6H13NO4S
CAS Number:
Molecular Weight:
195.24
MDL number:

Quality Level

Assay

≥99% dry basis (titration)

form

crystalline solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)

color

white

pKa (20 °C)

6.2

solubility

water: 1.0 M (195.2 mg/ml)

cation traces

heavy metals: ≤1 ppm

shipped in

ambient

storage temp.

15-25°C

InChI

1S/C6H13NO4S/c8-12(9,10)6-3-7-1-4-11-5-2-7/h1-6H2,(H,8,9,10)

InChI key

SXGZJKUKBWWHRA-UHFFFAOYSA-N

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This Item
239782475898475894
MES ULTROL® Grade, ≥99% dry basis (titration), zwitterionic buffer useful in pH range 5.5-6.5

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475893

MES

CAPS ULTROL® Grade, ≥99% (HPLC), zwitterionic buffer useful in pH range 7.9-11.1

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239782

CAPS

MOPS ULTROL® Grade, ≥99% (titration), zwitterionic buffer useful in pH range 6.5-7.9

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475898

MOPS

MES sodium salt ULTROL® Grade, ≥99% dry basis (titration), zwitterionic buffer useful in pH range 5.5-6.7

Millipore

475894

MES sodium salt

form

crystalline solid

form

solid

form

solid

form

solid

storage condition

OK to freeze, desiccated (hygroscopic)

storage condition

OK to freeze

storage condition

OK to freeze

storage condition

OK to freeze

color

white

color

white

color

white

color

white

pKa (20 °C)

6.2

pKa (20 °C)

10.4

pKa (20 °C)

7.2

pKa (20 °C)

6.2

solubility

water: 1.0 M (195.2 mg/ml)

solubility

water: 20 mg/mL

solubility

water: 1 M

solubility

water: 5 mg/mL

General description

A zwitterionic buffer useful in the pH range of 5.5-6.5 (absorbance: <0.05 at 260 nm, 1.0 M, H2O; pKa: 6.1 ± 0.2 at 25°C).
A zwitterionic buffer useful in the pH range of 5.5-6.5. Has a pKa of 6.10 at 25°C.
Absorbance (1.0 M, H2O, 260 nm): <0.05.

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 2 weeks at 4°C.

Other Notes

Good, N.E., et al. 1966. Biochemistry 5, 467.

Legal Information

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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25G
Pack Size/Quantity

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705578-5MG-PW

PL860-CGA/SHF-1EA

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