2-Mercaptoethanesulfonic acid sodium salt (Mesna)
(17418243 | 19767-45-4)

CAS: 19767-45-4
Molecular Formula: C2H5NaO3S2
Molecular Weight: 164.18
Availablility: In Stock
2-Mercaptoethanesulfonic acid sodium salt (Mesna) Chemical Structure

Prepack Pricing ( GBP ‐ £ )
17418243-5g 5g £19.80
17418243-25g 25g £49.80

Product Detail
Product Code 17418243
Product Name 2-Mercaptoethanesulfonic acid sodium salt (Mesna)
Categories Analytical Reagents Building Blocks
CAS 19767-45-4
Molecular Formula C2H5NaO3S2
Molecular Weight 164.18
Storage Details Ambient
Harmonised Tariff Code 29309098

Product Specification
Impurity A <0.3%
Impurity B <0.3%
Heavy metals <10ppm
pH 4.5 - 6
Impurity C <0.2%
Impurity D <3.0%
Loss on Drying <1.0%
Solubility Freely soluble in water, slightly soluble in ethanol, practically insoluble in cyclhexane
Assay 96 - 102%
Ethanol <5000ppm
Isopropanol <5000ppm
Any Other Impurities <0.1%
Cl <250ppm
Appearance White or slightly yellow crystalline powder
Sulfates <300ppm
Impurity E <0.3%
Sum of any other substances <0.3%

Safety Information
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Hazard statements
  • H315: Causes skin irritation
  • H319: Causes serious eye irritation
  • H335: May cause respiratory irritation
Precautionary statements
  • P261: Avoid breathing dust/fume/gas/mist/vapours/spray
  • P280: Wear protective gloves/protective clothing/eye protection/face protection
  • P305+351+338: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing
  • P308+313: IF exposed or concerned: Get medical advice/attention