CAS:1119-51-3丨5-Bromo-1-pentene | China Manufacturer
Product Name: 5-Bromo-1-pentene
Synonym: 5-Bromopent-1-ene, 1-Bromo-4-pentene, 4-Pentenyl bromide, Pent-4-en-1-yl bromide
CAS Number: 1119-51-3
EINECS Number: 214-281-4
Molecular Formula: C₅H₉Br
Molecular Weight: 149.03
Purity: ≥ 95%
Appearance: Clear colourless to light yellow liquid
Boiling Point: 126-127 °C (765 mmHg)
Density: 1.258 g/mL at 25 °C
Refractive Index: n20/D 1.463
Flash Point: 30 °C
Storage Condition: Refrigerated (0-10 °C)
Packaging: 0.1g / 0.25g / 1g / 5g / 10g / 25g (custom available)
Lead Time: 3-7 business days from stock
Made in China | COA & SDS provided with every shipment
- Worldwide Delivery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
CAS 1119-51-3 | 5-Bromo-1-pentene | Alkyl Bromide Building Block for Organic Synthesis | China Manufacturer
|
🧪 Purity
≥ 95%
GC verified
|
🧊 Appearance
Clear Liquid
Colourless to light yellow
|
⚖️ Molecular Weight
149.03
C₅H₉Br
|
📦 Packaging
0.1g – 25g
Custom available
|
Product Overview
As a China-based manufacturer, Alfa Chemical supplies high-purity 5-Bromo-1-pentene (CAS 1119-51-3), a versatile alkyl bromide building block for organic synthesis. This compound features both a terminal alkene and a primary alkyl bromide group, providing dual functionality for a wide range of chemical transformations including nucleophilic substitution, cross-coupling, and addition reactions.
5-Bromo-1-pentene is widely used as a starting material in the stereoselective synthesis of 7α-(3-carboxypropyl) estradiol and other steroid derivatives. It also serves as a key intermediate for the synthesis of DL-histrionicotoxin and benzophenone-containing fatty acids. The compound is supplied as a clear colourless to light yellow liquid with a minimum purity of 95%, verified by GC analysis.
We offer flexible packaging from 0.1g R&D samples to 25g bulk quantities with fast worldwide delivery. For similar organic building blocks and alkyl halides, explore our related product range.
Key Features
Terminal alkene and primary alkyl bromide enable diverse synthetic transformations including substitution, coupling, and addition reactions.
Key building block for the stereoselective synthesis of steroid derivatives including 7α-(3-carboxypropyl) estradiol.
≥95% purity verified by GC. Each batch includes a Certificate of Analysis with detailed purity and identity data.
Available from 0.1g R&D samples to 25g quantities. Reliable supply chain with 3-7 day delivery worldwide.
Applications
Used in the stereoselective synthesis of 7α-(3-carboxypropyl) estradiol and other steroid derivatives for pharmaceutical research.
Request technical data →Starting material for the synthesis of DL-histrionicotoxin and other complex alkaloid natural products.
Get formulation advice →Used in the preparation of benzophenone-containing fatty acids and other functionalized lipid derivatives.
Request a sample →General building block for carbon-carbon bond formation, cross-coupling reactions, and functional group transformations.
Request a quote →Product Specifications
| Item | Specification |
|---|---|
| Product Name | 5-Bromo-1-pentene |
| Synonym | 5-Bromopent-1-ene, 1-Bromo-4-pentene, 4-Pentenyl bromide |
| CAS Number | 1119-51-3 |
| EINECS Number | 214-281-4 |
| Molecular Formula | C₅H₉Br |
| Molecular Weight | 149.03 g/mol |
| Purity | ≥ 95% (GC) |
| Appearance | Clear colourless to light yellow liquid |
| Boiling Point | 126-127 °C (765 mmHg) |
| Density | 1.258 g/mL at 25 °C |
| Refractive Index | n20/D 1.463 |
| Flash Point | 30 °C |
| Storage Condition | Refrigerated (0-10 °C) |
| Shelf Life | 12 months (under recommended storage) |
| Packaging Options | 0.1g / 0.25g / 1g / 5g / 10g / 25g, custom available |
Every shipment includes COA (with GC purity data) and SDS. Click below to request batch-specific documents or technical data:
Manufacturing & Quality Control
Alfa Chemical operates a dedicated facility for organic building blocks and alkyl halides. Our 5-Bromo-1-pentene is synthesized under controlled conditions to ensure high chemical purity (≥95%), consistent physical properties, and reliable performance in downstream applications.
Each batch is tested in-house for purity (GC), identity (MS/NMR), and physical properties. A Certificate of Analysis (COA) and Safety Data Sheet (SDS) are provided with every shipment. Learn more about our facilities →
Packaging & Shipping
- Packaging Options: 0.1g / 0.25g / 1g / 5g / 10g / 25g, custom packaging on request
- Shipping Methods: International express courier for sample quantities; air freight or sea freight for bulk orders
- Delivery Time: 3-7 business days after payment confirmation
- Documentation: COA (GC purity) and SDS provided with every shipment
- For special packaging or urgent requests, please contact our team directly.
Why Choose Alfa Chemical
- 10+ years focused on organic building blocks and alkyl halides
- Experienced R&D and QC team with expertise in organic synthesis and purification
- In-house QC – purity (GC), identity (MS/NMR), and physical properties verified, batch-traceable COA
- Flexible supply – 0.1g for R&D up to 25g for production
- China manufacturer direct – competitive pricing with full COA/SDS traceability
- Explore more other material chemicals or contact us for custom requirements.
Frequently Asked Questions
It is used as an alkyl bromide building block in organic synthesis, including steroid synthesis, alkaloid synthesis, and fatty acid preparation.
Our 5-Bromo-1-pentene has a minimum purity of 95% verified by GC. Each batch includes a Certificate of Analysis.
Standard packaging includes 0.1g, 0.25g, 1g, 5g, 10g, and 25g. Custom packaging is available upon request.
Yes, COA with GC purity data and SDS are provided with every shipment. Batch-specific documents are available upon request.
Store in a cool, dry, well-ventilated area in sealed containers under refrigeration (0-10 °C). Avoid heat and direct sunlight. Shelf life is 12 months under proper storage.
Standard MOQ is 0.1g for R&D samples and 25g for production quantities. Contact us for custom quantities.
Related products & resources:
* All product specifications are for reference purposes. Users should conduct their own suitability tests under actual conditions. This product is for R&D use only. Not for pharmaceutical, therapeutic, food, or cosmetic applications without specific regulatory compliance testing.
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