1-Chloropentane
1-Chloropentane (CAS: 543-59-9), with the chemical formula CH3(CH2)4Cl and a molecular weight of 106.59 g/mol, is a halogenated hydrocarbon. It functions as a valuable organic building block and reagent in chemical synthesis. This compound is typically used in laboratory settings for various organic transformations and as an intermediate in the production of other chemicals. Its properties make it suitable for reactions requiring an alkyl halide.
- IUPAC
- Amyl chloride,Pentyl chloride
- Synonyms
- Amyl chloridePentyl chloride

Organic Synthesis Intermediate
1-Chloropentane serves as a key intermediate in the synthesis of more complex organic molecules. Its reactive C-Cl bond allows for nucleophilic substitution reactions, facilitating the introduction of the pentyl group into various structures.
Alkylation Reagent
This compound can be employed as an alkylating agent in organic chemistry. It is used to introduce a linear five-carbon alkyl chain onto nucleophilic substrates in research and development settings.
Building Block for Fine Chemicals
As an alkyl building block, 1-Chloropentane finds application in the preparation of fine chemicals and specialty organic compounds. It is a versatile starting material for creating diverse chemical entities.
| Molecular weight | 106.59 |
|---|---|
| Linear formula | CH3(CH2)4Cl |
| Assay | ≥98.5% (GC) |
| Boiling point | 107-108 °C(lit.) |
| Density | 0.882 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.412(lit.)n20/D 1.412 |
| Solubility | alcohol: miscible(lit.)diethyl ether: miscible(lit.)water: insoluble(lit.) |


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 | 12 °C / 53.6 °F |
| Transport (UN / ADR) | UN 1107 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-20/21/22 |
| Safety statements (S) | 9-29 |
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 1-Chloropentane used for?
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1-Chloropentane is primarily used as an intermediate in organic synthesis and as an alkylating agent for introducing the pentyl group in the preparation of fine chemicals and other organic compounds.
What are the CAS number and chemical formula for 1-Chloropentane?
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The CAS number for 1-Chloropentane is 543-59-9, and its chemical formula is CH3(CH2)4Cl.
What grade and purity does Tech Serve Solutions supply for 1-Chloropentane?
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Tech Serve Solutions supplies 1-Chloropentane with an assay of ≥98.5% (GC). We do not represent this product as USP, BP, or EP grade.
How should 1-Chloropentane be handled safely?
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1-Chloropentane is flammable and harmful if swallowed, inhaled, or in contact with skin. Handle with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, in a well-ventilated area, keeping away from heat and ignition sources.
Is 1-Chloropentane shipped internationally by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of chemicals, including 1-Chloropentane.
How can I request a quote or sample of 1-Chloropentane?
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To request a quote or sample of 1-Chloropentane, please contact our sales team via the website or your designated account manager.
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