5-Methylfuran-2-carbonyl chloride
5-Methylfuran-2-carbonyl chloride (CAS: 14003-11-3, C6H5ClO2) is a heterocyclic organic compound with a molecular weight of 144.56 g/mol. As an acid chloride derived from 5-methyl-2-furoic acid, it serves as a reactive intermediate in organic synthesis. Its primary applications lie in the construction of more complex molecules within pharmaceutical research and chemical development, leveraging the furan ring structure for further functionalisation.
- IUPAC
- 5-Methyl-2-furoyl chloride
- Synonyms
- 5-Methyl-2-furoyl chloride

Organic Synthesis Intermediate
5-Methylfuran-2-carbonyl chloride is employed as a key building block in the synthesis of diverse organic compounds. It facilitates the introduction of the 5-methyl-2-furoyl moiety into various molecular frameworks.
Pharmaceutical Research
This compound is utilised in the development of novel pharmaceutical agents, where the furan ring system can impart specific biological activities or serve as a scaffold for drug discovery.
Agrochemical Development
It finds application in the research and synthesis of new agrochemicals, contributing to the creation of compounds with potential pesticidal or herbicidal properties.
Material Science
The reactive nature of the acid chloride functional group allows for its incorporation into polymers or functional materials, potentially modifying their properties.
| Molecular weight | 144.56 |
|---|---|
| Empirical formula | C6H5ClO2 |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 27-31 °C |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 91 °C / 195.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26-36/37 |
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 5-Methylfuran-2-carbonyl chloride used for?
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5-Methylfuran-2-carbonyl chloride is primarily used as a reactive intermediate in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and functional materials.
What is the CAS number and molecular formula?
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The CAS number for 5-Methylfuran-2-carbonyl chloride is 14003-11-3, and its molecular formula is C6H5ClO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Methylfuran-2-carbonyl chloride with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 5-Methylfuran-2-carbonyl chloride be handled?
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Warning: Causes serious eye irritation (H319). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask type N95 (US). Avoid contact with eyes and skin.
How is 5-Methylfuran-2-carbonyl chloride packed and shipped?
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5-Methylfuran-2-carbonyl chloride is stored at 2-8°C. TSS offers global export services, ensuring secure and compliant packaging for international shipment.
How can I request a sample or quote?
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To request a sample or a quote for 5-Methylfuran-2-carbonyl chloride, please contact our sales team via the website or direct inquiry.
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