Crotyl bromide
Crotyl bromide (CAS: 29576-14-5) is an organobromine compound with the linear formula CH3CH=CHCH2Br and a molecular weight of 135.00 g/mol. This flammable liquid serves as a valuable building block in organic synthesis, particularly for introducing the crotyl group into various molecular structures. Its reactivity makes it a key intermediate in the preparation of more complex organic molecules and fine chemicals.
- IUPAC
- trans-1-Bromo-2-butene
- Synonyms
- trans-1-Bromo-2-butene
Organic Synthesis Intermediate
Crotyl bromide is utilized as an electrophilic reagent in organic synthesis. It readily participates in nucleophilic substitution reactions, enabling the formation of carbon-carbon and carbon-heteroatom bonds. This is fundamental in constructing complex organic frameworks.
Allylic Halide Reactant
As an allylic halide, it exhibits enhanced reactivity due to the adjacent double bond. This property allows for specific synthetic transformations, including coupling reactions and the formation of substituted alkenes.
Precursor for Fine Chemicals
It serves as a precursor in the multi-step synthesis of various fine chemicals and potentially pharmaceutical intermediates, where precise introduction of the four-carbon crotyl moiety is required.
| Molecular weight | 135.00 |
|---|---|
| Linear formula | CH3CH=CHCH2Br |
| Assay | 85% |
| Boiling point | 97-99 °C(lit.) |
| Density | 1.312 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.480(lit.) |
| Storage temperature | 2-8°C |
Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 11 °C / 51.8 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37-36/37/38 |
| Safety statements (S) | 16-26-27-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Crotyl bromide used for?
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Crotyl bromide (CAS: 29576-14-5) is primarily used as a building block in organic synthesis, specifically for introducing the crotyl group into molecules through reactions like nucleophilic substitution. It is a reactive intermediate in the preparation of fine chemicals.
What is the CAS number and formula for Crotyl bromide?
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The CAS number for Crotyl bromide is 29576-14-5, and its linear formula is CH3CH=CHCH2Br.
What grade and purity does Tech Serve Solutions supply for Crotyl bromide?
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Tech Serve Solutions supplies Crotyl bromide with an assay of 85%. This is a technical grade suitable for research and synthesis, and TSS does not represent it as USP, BP, or EP grade.
How should Crotyl bromide be handled safely?
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Crotyl bromide is a flammable liquid and can cause skin and eye irritation, as well as respiratory irritation. Handle with appropriate personal protective equipment, including eyeshields, gloves, and ensure adequate ventilation. Store in a cool, well-ventilated place away from heat and ignition sources, ideally at 2-8°C.
Is Crotyl bromide packed and shipped internationally by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Crotyl bromide, adhering to international shipping regulations (UN 1993 BF 3 / PGII).
How can I request a quote or sample of Crotyl bromide?
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To request a quote or sample of Crotyl bromide, please contact our sales team through the website or by phone. Our representatives will assist you with your requirements.
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