Molekula
MES monohydrate
MES monohydrate is a buffering agent commonly used in biochemical and molecular biology applications, particularly in electrophoresis and protein purification. It maintains stable pH in the range of 5.5 to 7.0. Available with a CAS number of 145224-94-8, its molecular formula is OC4H8N(CH2)2SO3H · H2O and molecular weight is 213.25 g/mol. It should be stored at ambient temperature and carries a warning signal word. Molekula supplies MES monohydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
MES monohydrate is a buffering agent commonly used in biochemical and molecular biology applications, particularly in electrophoresis and protein purification. It maintains stable pH in the range of 5.5 to 7.0. Available with a CAS number of 145224-94-8, its molecular formula is OC4H8N(CH2)2SO3H · H2O and molecular weight is 213.25 g/mol. It should be stored at ambient temperature and carries a warning signal word. Molekula supplies MES monohydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Water | 8.0 - 8.9% |
| Heavy metals | ≤ 5ppm |
| Identification | Conforms to reference |
| pH | 3.5 - 4.5 |
| Residue on Ignition | ≤ 0.1% |
| Pka | 5.9 - 6.3 |
| A260, 0.5M water | ≤0.025 |
| A280, 0.5 M water | ≤0.020 |
| Assay (Titration) on dried basis | ≥ 99.0% |
| Solubility 0.1M water | Clear, Colourless Solution |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 60 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 145224-94-8 |
| Molecular Formula | OC4H8N(CH2)2SO3H · H2O |
| Molecular Weight | 213.25 |
| SMILES | O=S(=O)(O)CCN1CCOCC1.O |
| REACH Code | Y113 |
| HTS Code | 2934.99.9001 |
| Tariff Code | 2934999090 |
Safety & GHS
-
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
- 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 with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
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
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is MES monohydrate used for?
MES monohydrate is commonly used as a buffering agent in biochemical and molecular biology applications, particularly in electrophoresis and enzyme assays.
What is the chemical formula and molecular weight of MES monohydrate?
The formula is OC4H8N(CH2)2SO3H · H2O and the molecular weight is 213.25 g/mol.
How should MES monohydrate be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade of MES monohydrate is available?
Molekula supplies MES monohydrate in high-purity grade suitable for laboratory and research use.
Can Molekula supply MES monohydrate in bulk?
Yes, Molekula can supply MES monohydrate in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of MES monohydrate?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.