2-Chloropropene
2-Chloropropene (CAS 557-98-2), with the chemical formula CH3CCl=CH2 and a molecular weight of 76.52 g/mol, is a halogenated hydrocarbon. This compound serves as a valuable building block in organic synthesis. Its specific applications are often found in research settings, particularly in studies involving radical chemistry and photoionization processes. Tech Serve Solutions supplies 2-Chloropropene for laboratory and research purposes.
- IUPAC
- 2-Chloro-1-propene,Isopropenyl chloride

Chemical Synthesis
2-Chloropropene acts as a versatile building block in organic synthesis. Its structure allows for various reactions, making it useful in the preparation of more complex molecules. It is typically employed in research and development settings.
Radical Chemistry Research
This compound has been utilised in studies investigating the properties of allyl and 2-propenyl radicals. Its behaviour under specific conditions, such as photoionization, has been a subject of scientific inquiry.
Photoionization Studies
2-Chloropropene is used in experiments to measure photoionization cross sections of related radicals. This research employs techniques like vacuum ultraviolet synchrotron radiation and photofragment translational spectroscopy.
| Molecular weight | 76.52 |
|---|---|
| Linear formula | CH3CCl=CH2 |
| Assay | 98% |
| Boiling point | 22.5-22.8 °C(lit.) |
| Density | 0.899 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.395(lit.) |
| Storage temperature | 2-8°C |
| Melting point | −138.6 °C(lit.) |
| Application | 2-Chloropropene has been used in measurement of photoionization cross sections of allyl and 2-propenyl radicals to form C3H5+ by tunable vacuum ultraviolet synchrotron radiation coupled with photofragment translational spectroscopy1. |


Hazard statements
- H224Extremely flammable liquid and vapour
- 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) |
|---|---|
| Flash point | -20 °C / -4 °F |
| Transport (UN / ADR) | UN 2456 3 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F+,Xi |
| Risk statements (R) | 12-36/37 |
| Safety statements (S) | 16-26-36 |
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 2-Chloropropene used for?
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2-Chloropropene is used as a building block in organic synthesis and in research involving radical chemistry and photoionization studies.
What are the CAS number and formula for 2-Chloropropene?
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The CAS number for 2-Chloropropene is 557-98-2, and its chemical formula is CH3CCl=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloropropene with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 2-Chloropropene be handled safely?
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2-Chloropropene is highly flammable and can cause serious eye irritation and respiratory irritation. Handle with extreme care in a well-ventilated area, away from ignition sources. Appropriate personal protective equipment, including eyeshields and chemical-resistant gloves, is essential. Refer to the Safety Data Sheet for comprehensive handling information.
How is 2-Chloropropene packed and shipped?
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2-Chloropropene is typically stored at 2-8°C. It is shipped in compliance with international regulations for hazardous materials, including UN 2456.
How can I request a sample or quote for 2-Chloropropene?
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To request a sample or a quote for 2-Chloropropene, please contact our sales team via the website or by phone.
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