Molekula
3,4-Dibromothiophene
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
3,4-Dibromothiophene is a brominated heterocyclic compound primarily used as a building block in organic synthesis, particularly for pharmaceuticals, agrochemicals, and advanced materials research. It serves as a key intermediate in the preparation of functionalized thiophene derivatives due to its reactive bromine substituents. This chemical has a CAS number of 3141-26-2, with the molecular formula C4H2Br2S and a molecular weight of 241.93 g/mol. It is stored at ambient conditions and carries a Signal Word of Warning for safety. Molekula supplies 3,4-Dibromothiophene 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.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — £85.20 per pack ex VAT · £102.24 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | Liquid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.12 mmHg |
Source: PubChem CID 18452 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 28121389 |
| CAS Number | 3141-26-2 |
| IUPAC Name | 3,4-dibromothiophene |
| EC Number | 221-546-8 |
| Molecular Formula | C4H2Br2S |
| Molecular Weight | 241.93 |
| Exact Mass | 241.8224 |
| SMILES | C1=C(C(=CS1)Br)Br |
| InChIKey | VGKLVWTVCUDISO-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H2Br2S/c5-3-1-7-2-4(3)6/h1-2H |
| PubChem CID | 18452 |
| REACH Code | Y110 |
| HTS Code | 29349990 |
| Tariff Code | 2934999090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- 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
- 3,4-bis(bromanyl)thiophene
- 3,4-dibromo-thi
- 3,4-Dibromothiphene
- Thiophene, 3,4-dibromo-
- Thiophene,4-dibromo-
Frequently asked questions
What is 3,4-Dibromothiophene commonly used for?
3,4-Dibromothiophene is primarily used as a building block in organic synthesis, particularly for preparing thiophene-based polymers, pharmaceutical intermediates, and advanced materials like conductive polymers.
What is the chemical formula and molecular weight of 3,4-Dibromothiophene?
The chemical formula is **C₄H₂Br₂S**, and the molecular weight is **241.93 g/mol**.
How should 3,4-Dibromothiophene be stored?
Store at **ambient temperature** in a cool, dry place, away from incompatible substances like strong oxidizers or moisture.
What purity grades are available for 3,4-Dibromothiophene?
Molekula supplies **reagent-grade (97%+ purity)** 3,4-Dibromothiophene; higher purities may be available upon request.
Can Molekula supply 3,4-Dibromothiophene in bulk quantities?
Yes, we offer bulk quantities of 3,4-Dibromothiophene—please contact our sales team for pricing and lead times.
What documentation is provided with an order of 3,4-Dibromothiophene?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
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.