Molekula
1-Bromo-4-chlorobutane
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
1-Bromo-4-chlorobutane is a haloalkane with a four-carbon chain featuring both bromine and chlorine substituents, commonly used as a synthetic intermediate in organic synthesis, pharmaceuticals, and polymer research. It enables selective functionalization in reactions such as nucleophilic substitutions and cross-couplings. This clear, colorless liquid has a CAS number of 6940-78-9, a molecular formula of Cl(CH2)4Br, and a molecular weight of 171.46 g/mol. Store at ambient temperatures under dry conditions. The product carries a signal word of "Warning" due to its moderate hazard profile. Molekula supplies 1-Bromo-4-chlorobutane 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 — £26.40 per pack ex VAT · £31.68 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to light yellow liquid |
| Identification | Conforms to reference |
| Purity | >99% |
| Moisture | <0.05% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 60 °C |
| Transport Class | 3 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 30107992 |
| CAS Number | 6940-78-9 |
| IUPAC Name | 1-bromo-4-chlorobutane |
| EC Number | 230-089-3 |
| Molecular Formula | Cl(CH2)4Br |
| Molecular Weight | 171.46 |
| Exact Mass | 169.9498 |
| SMILES | C(CCBr)CCl |
| InChIKey | NIDSRGCVYOEDFW-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H8BrCl/c5-3-1-2-4-6/h1-4H2 |
| PubChem CID | 81364 |
| UN Number | UN1993 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29037990 |
| Tariff Code | 2903793090 |
Safety & GHS
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Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H226 Flammable liquid and vapour
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P242 Use only non-sparking tools
- 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
- 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, Portuguese, 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-Chloro-4-bromobutane
- 4-Bromo-1-chlorobutane
- 4-Bromobutyl Chloride
- 4-chlorobromobutane
- 4-Chlorobutyl Bromide
- bromo 4 chlorobutane
- Butane, 1-bromo-4-chloro-
- NIDSRGCVYOEDFW-UHFFFAOYSA-N
- TETRAMETHYLENECHLOROBROMIDE
Frequently asked questions
What is 1-Bromo-4-chlorobutane commonly used for?
It is primarily used as an intermediate in organic synthesis, including the preparation of pharmaceuticals, agrochemicals, and polymers.
What is the molecular formula and molecular weight of 1-Bromo-4-chlorobutane?
The molecular formula is **Cl(CH₂)₄Br**, and the molecular weight is **171.46 g/mol**.
How should 1-Bromo-4-chlorobutane be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture, heat, and incompatible substances.
What grades or purity levels are available for this product?
Molekula supplies **technical grade** and **reagent grade** (98%+ purity) for 1-Bromo-4-chlorobutane.
Can Molekula supply 1-Bromo-4-chlorobutane in bulk quantities?
Yes, we offer bulk quantities (minimum order quantities vary; contact us for specific details).
What documentation is provided with an order of 1-Bromo-4-chlorobutane?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **Safety Data Sheet (SDS)**.
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.