Glutaric acid monoethyl ester chloride
Glutaric acid monoethyl ester chloride (CAS: 5205-39-0), with the linear formula ClCO(CH2)3COOC2H5 and a molecular weight of 178.61 g/mol, is a versatile organic building block. This acid halide serves as a reactive intermediate in chemical synthesis, particularly for introducing the ethyl 5-oxopentanoyl moiety into target molecules. It is suitable for research and development purposes, finding application in the preparation of various organic compounds.
- IUPAC
- Ethyl 4-(chloroformyl)butyrate,Ethyl 5-chloro-5-oxovalerate,Ethyl glutaryl chloride
- Synonyms
- Ethyl 4-(chloroformyl)butyrateEthyl 5-chloro-5-oxovalerateEthyl glutaryl chloride

Organic Synthesis Intermediate
Utilised as a key intermediate in the construction of complex organic molecules. Its reactive acid chloride group readily participates in acylation reactions, facilitating the formation of new carbon-heteroatom bonds.
Pharmaceutical Building Block
Serves as a precursor in the synthesis pathways for potential pharmaceutical agents and active pharmaceutical ingredients (APIs). Its specific structure allows for targeted modifications in drug discovery programs.
Reagent for Derivatisation
Can be employed for the derivatisation of alcohols and amines, enabling the characterisation or modification of other chemical entities. The ester functionality offers further possibilities for subsequent chemical transformations.
| Molecular weight | 178.61 |
|---|---|
| Linear formula | ClCO(CH2)3COOC2H5 |
| Assay | ≥97.0% (NT) |
| Boiling point | 68-70 °C/0.07 mmHg(lit.) |
| Refractive index | n20/D 1.443 |
| Storage temperature | 2-8°C |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34-37 |
| Safety statements (S) | 26-36/37/39-45 |
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 Glutaric acid monoethyl ester chloride used for?
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Glutaric acid monoethyl ester chloride is primarily used as a reactive intermediate in organic synthesis, serving as a building block for more complex molecules, including potential pharmaceutical agents.
What is the CAS number and formula for Glutaric acid monoethyl ester chloride?
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The CAS number is 5205-39-0, and its linear formula is ClCO(CH2)3COOC2H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Glutaric acid monoethyl ester chloride with an assay of ≥97.0% (NT). We do not represent this product as USP, BP, or EP grade.
How should Glutaric acid monoethyl ester chloride be handled safely?
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This compound is a Danger hazard, classified as H314 (Causes severe skin burns and eye damage). Handle with extreme caution, using appropriate personal protective equipment including full-face shields, respirators, gloves, and goggles. Ensure adequate ventilation.
Is Glutaric acid monoethyl ester chloride available for export?
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Yes, Tech Serve Solutions specialises in global supply and export of fine chemicals. Please contact us for international order inquiries.
How can I request a sample or quote for Glutaric acid monoethyl ester chloride?
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To request a sample or a detailed quote, please use the contact form on our website or reach out to our sales team directly with your requirements.
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