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S6546 Sigma-Aldrich

Sodium chloride solution

5 M

  • CAS Number 7647-14-5

  • Linear Formula NaCl

  • Molecular Weight 58.44

  •  Beilstein/REAXYS Number 3534976

  •  MDL number MFCD00003477

  •  PubChem Substance ID 24899711

  •  NACRES NA.25



Related Categories Biochemicals and Reagents, Biological Buffers, Buffer Convenience Packaging, Buffer Solutions, Chemical Synthesis,
Quality Level   200
sterility   0.2 μm filtered
concentration   5 M
density   1.190 g/cm3
SMILES string   [Na+].[Cl-]
InChI   1S/ClH.Na/h1H;/q;+1/p-1


General description

Sodium chloride (NaCl), common salt also known as halite, is ubiquitous in occurrence and has many vital applications. It is a white crystalline solid, fairly soluble in water. NaCl is a flavouring agent in the food industry and used for texturing bread and baked foods. NaCl is an essential salt for normal body functions in humans and animals. NaCl is essential for maintaining plasma osmolality and extracellular fluid volume of the body. Excess of NaCl leads to elevated blood pressure which has implications on cardiovascular and renal diseases. NaCl is a basic component in the microbiological medium, specifically for culturing of halophiles. Sterile NaCl is a constituent of eye drop solutions.


Sodium chloride has been used:
• as a supplement in serum free media for CA3 pyramidal neuron layer preparation
• in the preparation of oligonucleotides (ODNs) annealing buffer
• in the preparation of phosphate buffered saline and in phosphatase methylesterase-1 (PME-1) inhibition and counterscreen assay buffers

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles


Enzymatic Assay of Collagenase

The continuous spectrophotometric rate determination (A345, Light path = 1 cm) is based on the following reaction:
Keywords: Extinction coefficient

Enzymatic Assay of Sulfatase (EC

This procedure may be used for determination of Sulfatase activity in products, except for Sulfatase products from Aerobacter aerogenes (Product Number S1629).
Keywords: Extinction coefficient

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