MES monohydrate
(12705461 | 145224-94-8)

CAS: 145224-94-8
Molecular Formula: OC4H8N(CH2)2SO3H · H2O
Molecular Weight: 213.25
Availablility: In Stock
Downloads: Product Specification | Safety Data Sheet [EN]
MES monohydrate Chemical Structure

12705461-100g 100g £60.70
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12705461-100g 100g €85.00
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12705461-100g 100g $91.10
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Safety Data Sheet
Certificate of Analysis

Product Detail
Product Code 12705461
Product Name MES monohydrate
Categories Buffers
CAS 145224-94-8
Molecular Formula OC4H8N(CH2)2SO3H · H2O
Molecular Weight 213.25
Storage Details Ambient
Harmonised Tariff Code 29349990

Product Specification
Water 8 - 8.9%
Heavy metals <5ppm
pH 3.5 - 4.5
Residue on Ignition <0.1%
Pka 5.9 - 6.3
Appearance White crystalline powder
A260, 0.5M water <0.025
A280, 0.5 M water <0.020
Assay (Titration) on dried basis >99%
Solubility 0.1M water Clear, Colourless Solution

Safety Information
Exclamation Mark
Signal word warning
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

  • P301+330: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting

  • P302+352: IF ON SKIN: Wash with soap and water

  • P304+340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing

  • P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing

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