Cyclobutyl chloride
Cyclobutyl chloride (CAS: 1120-57-6), with the molecular formula C4H7Cl, is a halogenated hydrocarbon and an organic building block. It serves as a valuable intermediate in organic synthesis. Its chemical structure allows for various reactions, making it useful in the preparation of more complex molecules for research and industrial applications. Tech Serve Solutions supplies cyclobutyl chloride at a 97% assay.
- IUPAC
- Chlorocyclobutane

Organic Synthesis Intermediate
Cyclobutyl chloride is primarily used as a reactive intermediate in the synthesis of various organic compounds. Its cyclobutyl ring structure can be incorporated into larger molecules, serving as a foundational building block.
Research and Development
This compound is employed in academic and industrial research laboratories for exploring new synthetic pathways and developing novel chemical entities. It is useful for introducing the cyclobutyl moiety into target molecules.
Pharmaceutical Intermediate Precursor
While not a final drug substance, cyclobutyl chloride can act as a precursor in the multi-step synthesis of potential pharmaceutical agents. Its functional group allows for further chemical modifications.
| Molecular weight | 90.55 |
|---|---|
| Empirical formula | C4H7Cl |
| Assay | 97% |
| Boiling point | 83 °C(lit.) |
| Density | 0.991 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.436(lit.) |
| Storage temperature | 2-8°C |


Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -9 °C / 15.8 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-20/21/22 |
| Safety statements (S) | 16-33-36/37/39 |
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 Cyclobutyl chloride used for?
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Cyclobutyl chloride is used as a reactive intermediate in organic synthesis, particularly for introducing the cyclobutyl group into more complex molecules. It is also employed in research and development and as a precursor in the synthesis of potential pharmaceutical agents.
What is the CAS number and formula for Cyclobutyl chloride?
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The CAS number for Cyclobutyl chloride is 1120-57-6 and its molecular formula is C4H7Cl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cyclobutyl chloride with an assay of 97%. This is a technical grade suitable for general chemical synthesis and research purposes; we do not represent it as USP, BP, or EP grade.
How should Cyclobutyl chloride be handled safely?
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Cyclobutyl chloride is a flammable liquid and is harmful if swallowed, in contact with skin, or if inhaled. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area, keeping away from ignition sources.
Is Cyclobutyl chloride flammable?
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Yes, Cyclobutyl chloride is a flammable liquid with a flash point of -9 °C (15.8 °F).
How is Cyclobutyl chloride packed and shipped?
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Cyclobutyl chloride is shipped as a UN 1993, Hazard Class 3, Packing Group II substance, indicating it is a flammable liquid, for example, in accordance with IATA and ADR regulations.
How can I request a quote or sample for Cyclobutyl chloride?
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To request a quote or sample for Cyclobutyl chloride, please contact the Tech Serve Solutions sales team through our website or by phone.
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