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71119-22-7 Usage


MOPS sodium salt, also known as 3-(N-morpholino) propanesulfonic acid sodium salt, is a zwitterionic, morpholinic buffering agent used in biochemistry and molecular biology. It is characterized by its white powder form and is effective for a pH range of 6.5 – 7.9. MOPS sodium salt is known for its ability to maintain a stable pH environment in various applications without forming complexes with most metal ions, making it a preferred choice as a non-coordinating buffer in solutions containing metal ions.


Used in Biochemistry and Molecular Biology:
MOPS sodium salt is used as a buffering agent for maintaining a stable pH environment in cell culture media, electrophoresis running buffers, and protein purification chromatography processes. Its zwitterionic nature and lack of metal ion complexation make it an ideal choice for these applications.
Used in Cell Culture Media:
MOPS sodium salt is used as a buffering agent in buffered culture media for various cell types, including bacteria, yeast, and mammalian cells. It helps maintain a consistent pH, which is crucial for optimal cell growth and function.
Used in Electrophoresis:
MOPS sodium salt is utilized as a running buffer in electrophoresis techniques, such as agarose gel electrophoresis, to separate RNA and other biomolecules based on their size and charge. Its buffering capacity ensures a stable pH throughout the process.
Used in Protein Purification:
In chromatography, MOPS sodium salt serves as a buffering agent during protein purification. Its non-coordinating properties with metal ions help prevent unwanted interactions and maintain protein integrity.
Used in Bicinchoninic Acid (BCA) Assay:
MOPS sodium salt is suitable for use in the BCA assay, a colorimetric method for determining protein concentration. Its buffering capacity helps maintain a stable pH environment, ensuring accurate and reliable results.
Used in pH Adjustment:
MOPS sodium salt can be mixed with MOPS free acid to achieve the desired pH in various solutions. Alternatively, MOPS free acid can be titrated with sodium hydroxide to attain the required pH level.
It is recommended to sterilize MOPS buffers by filtration rather than autoclaving due to the formation of unknown yellow degradation products that may occur after autoclaving.

Flammability and Explosibility


Biological Activity

Multi purpose buffering agent used in biological research. Working pH range in aqueous solution: 6.5 - 7.9. Commonly used in cell culture media, as a running buffer for gel eletrophoresis, and within protein purification in chromatography.

Check Digit Verification of cas no

The CAS Registry Mumber 71119-22-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,1,1 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 71119-22:
97 % 10 = 7
So 71119-22-7 is a valid CAS Registry Number.

71119-22-7 Well-known Company Product Price

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  • Alfa Aesar

  • (A17214)  MOPS sodium salt, 98%   

  • 71119-22-7

  • 25g

  • 294.0CNY

  • Detail
  • Alfa Aesar

  • (A17214)  MOPS sodium salt, 98%   

  • 71119-22-7

  • 100g

  • 840.0CNY

  • Detail
  • Alfa Aesar

  • (A17214)  MOPS sodium salt, 98%   

  • 71119-22-7

  • 500g

  • 1611.0CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name MOPS sodium salt

1.2 Other means of identification

Product number -
Other names sodium,3-morpholin-4-ylpropane-1-sulfonate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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