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475893 Millipore

MES, Free Acid, ULTROL Grade - CAS 4432-31-9 - Calbiochem

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.

Synonym: 2-(N-Morpholino)ethanesulfonic Acid, MES, Free Acid, ULTROL Grade - CAS 4432-31-9 - Calbiochem

  • CAS Number 4432-31-9

  • Empirical Formula (Hill Notation) C6H13NO4S

  • Molecular Weight 195.24

  •  MDL number MFCD00006181

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Properties

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Quality Level   100
assay   ≥99% dry basis (titration)
form   crystalline solid
mfr. no.   Calbiochem®
storage condition   OK to freeze
  desiccated
storage conditions   +15C to +30C
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
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

Description

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.

Packaging

1 kg in Glass bottle

100, 500 g in Glass bottle

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

Safety & Documentation

Safety Information

WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

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