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2-Mercaptoethanesulfonic acid sodium salt (Mesna)

CAS 19767-45-4 C2H5NaO3S2 MW 164.18 In stock

2-Mercaptoethanesulfonic acid sodium salt, commonly known as Mesna, is a sulfhydryl compound used primarily as a urinary tract protective agent to prevent hemorrhagic cystitis caused by certain chemotherapy drugs. It is available in powder form with a molecular formula of C2H5NaO3S2, a molecular weight of 164.18 g/mol, and is stable at ambient storage conditions. The substance carries a warning signal word due to potential hazards. Molekula supplies Mesna from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

2-Mercaptoethanesulfonic acid sodium salt, commonly known as Mesna, is a sulfhydryl compound used primarily as a urinary tract protective agent to prevent hemorrhagic cystitis caused by certain chemotherapy drugs. It is available in powder form with a molecular formula of C2H5NaO3S2, a molecular weight of 164.18 g/mol, and is stable at ambient storage conditions. The substance carries a warning signal word due to potential hazards. Molekula supplies Mesna from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Specifications

Property Value
Appearance White or slightly yellow crystalline powder
Impurity A ≤0.3%
Impurity B ≤0.3%
Identification Conforms to reference
pH 4.5 - 6
Impurity C ≤0.2%
Impurity D ≤3.0%
Loss on Drying ≤1.0%
Chloride (Cl) ≤250ppm
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%
Sulphate (SO4) ≤300ppm
Impurity E ≤0.3%
Sum of any other substances ≤0.3%

Storage & handling

Property Value
Storage Temperature Ambient
Shelf Life 24 months
Acidity Acid

Identification

Property Value
CAS Number 19767-45-4
Molecular Formula C2H5NaO3S2
Molecular Weight 164.18
REACH Code Y110
Tariff Code 29309098

Safety & GHS

Warning
  • GHS pictogram — Explosive Explosive GHS01

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 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

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Pricing & pack sizes

Pack sizes & pricing

  • 5 g

    £30.89 · per pack

  • 25 g

    £77.69 · per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is 2-Mercaptoethanesulfonic acid sodium salt (Mesna) used for?

Mesna is primarily used as a protective agent against the nephrotoxic and urotoxic effects of chemotherapy drugs like ifosfamide and cyclophosphamide.

What is the chemical formula and molecular weight of Mesna?

The formula is C2H5NaO3S2 and the molecular weight is 164.18 g/mol.

How should Mesna be stored?

Mesna should be stored at ambient temperature, protected from moisture and light.

What grade of Mesna does Molekula supply?

Molekula supplies Mesna in pharmaceutical grade, suitable for research and clinical applications.

Can Molekula supply Mesna in bulk quantities?

Yes, Molekula can supply Mesna in bulk quantities—please contact our sales team for volume pricing and availability.

What documentation comes with a Mesna order?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.

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