Molekula
2-Bromoethanesulfonic acid
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
2-Bromoethanesulfonic acid is a brominated sulfonic acid used in organic synthesis and as an intermediate in pharmaceutical and agrochemical production. It appears as a white to off-white crystalline solid. CAS: 26978-65-4, Molecular Formula: BrC2H4SO3H, Molecular Weight: 189.03 g/mol. Store at 2 to 8 °C. Signal word: Danger. Molekula supplies 2-Bromoethanesulfonic acid 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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5 g — £38.90 per pack ex VAT · £46.68 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Yellow powder |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 8 (6.1) |
| Packing Group | II |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 29949409 |
| CAS Number | 26978-65-4 |
| IUPAC Name | 2-bromoethanesulfonic acid |
| EC Number | 248-150-8 |
| Molecular Formula | BrC2H4SO3H |
| Molecular Weight | 189.03 |
| Exact Mass | 187.9143 |
| SMILES | C(CBr)S(=O)(=O)O |
| InChIKey | OQFSYHWITGFERZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H5BrO3S/c3-1-2-7(4,5)6/h1-2H2,(H,4,5,6) |
| PubChem CID | 33662 |
| UN Number | UN2923 |
| REACH Code | Y110 |
| HTS Code | 29049950 |
| Tariff Code | 2904990090 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
Hazard statements
- H301 Toxic if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H331 Toxic if inhaled
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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
- 2-Bromanylethanesulfonic Acid
- 2-Bromo-1-ethanesulfonic acid
- 2-bromoethane-1-sulfonic acid
- 2-bromoethane-sulphonate
- 2-Bromoethanesulphonic acid
- 9SB
- Bromoethanesulfonic acid
- C2H5BrO3S
- Ethanesulfonic acid, 2-bromo-
Frequently asked questions
What is 2-Bromoethanesulfonic acid used for?
It is primarily used as a reagent in organic synthesis, particularly in the preparation of sulfonic acid derivatives and as a sulfonation agent.
What is the chemical formula and molecular weight of 2-Bromoethanesulfonic acid?
The formula is BrC2H4SO3H and the molecular weight is 189.03 g/mol.
How should 2-Bromoethanesulfonic acid be stored?
It should be stored at 2 to 8 °C to maintain stability and prevent decomposition.
What grade is available for 2-Bromoethanesulfonic acid?
Molekula supplies 2-Bromoethanesulfonic acid in reagent grade.
Can Molekula supply 2-Bromoethanesulfonic acid in bulk?
Yes, Molekula can supply 2-Bromoethanesulfonic acid in bulk quantities—please contact sales for details.
What documentation comes with an order of 2-Bromoethanesulfonic acid?
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.