Molekula
Ethanesulfonyl chloride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Ethanesulfonyl chloride is a reactive organic compound used in sulfonation reactions and as a reagent in the synthesis of sulfonamides and other sulfonate derivatives. It also serves as an intermediate for low-cost, non-fluorinated sulfonyl-substituted imide and methide lithium salts and for pentafluoroethanesulfonyl fluoride used in fluorinated surfactants. It is a colorless to pale yellow liquid with a pungent odor. CAS: 594-44-5, molecular formula: CH₃CH₂SO₂Cl, molecular weight: 128.58 g/mol. Store at ambient temperature. Hazardous: handle with care. Molekula supplies Ethanesulfonyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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25 g — £26.30 per pack ex VAT · £31.56 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to light yellow liquid |
| Water | ≤0.1% |
| Assay | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 83 °C |
| Transport Class | 6.1 (8) |
| Packing Group | II |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Pale yellow |
| Boiling Point | 177.5 °C |
| Solubility (other solvents) | Soluble in carbon disulfide |
| Vapour Pressure | 1.29 mmHg |
| Refractive Index | 1.4531 |
Source: PubChem CID 11667 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 90026288 |
| CAS Number | 594-44-5 |
| IUPAC Name | ethanesulfonyl chloride |
| EC Number | 209-842-5 |
| Molecular Formula | CH3CH2SO2Cl |
| Molecular Weight | 128.58 |
| Exact Mass | 127.9699 |
| SMILES | CCS(=O)(=O)Cl |
| InChIKey | FRYHCSODNHYDPU-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H5ClO2S/c1-2-6(3,4)5/h2H2,1H3 |
| PubChem CID | 11667 |
| UN Number | UN2927 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29049950 |
| Tariff Code | 2904990050 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
Hazard statements
- EUH071 Corrosive to the respiratory tract
- H290 May be corrosive to metals
- H301 Toxic if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H330 Fatal if inhaled
Precautionary statements
- P260 Do not breathe 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
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P309+311 IF exposed or you feel unwell: Call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
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.
Synonyms
- 1-Ethanesulfonyl chloride
- 1-Ethanesulfonyl chloride(ChemID)
- Ethane sulfochloride
- Ethanesulphonyl chloride
- Ethylsulfochloride
- Ethylsulfonyl chloride
- ethylsulfuryl chloride
- FRYHCSODNHYDPU-UHFFFAOYSA-N
- TL 77
Frequently asked questions
What is ethanesulfonyl chloride used for?
It is primarily used as a sulfonating agent in organic synthesis, particularly for introducing sulfonyl groups into molecules.
What is the chemical formula and molecular weight of ethanesulfonyl chloride?
The formula is CH3CH2SO2Cl with a molecular weight of 128.58 g/mol.
How should ethanesulfonyl chloride be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade of ethanesulfonyl chloride does Molekula supply?
Molekula supplies ethanesulfonyl chloride in reagent grade.
Can Molekula supply ethanesulfonyl chloride in bulk?
Yes, Molekula can supply ethanesulfonyl chloride in bulk quantities upon request.
What documentation comes with an order of ethanesulfonyl chloride?
Each order includes a Certificate of Analysis 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.