Methyl 2-chloroacetoacetate
Methyl 2-chloroacetoacetate (CAS: 4755-81-1) is a key organic intermediate with the linear formula CH₃COCH(Cl)CO₂CH₃ and a molar mass of 150.56 g/mol. This versatile ester serves as a fundamental building block in organic synthesis. Its reactive alpha-chloro ketone and ester functionalities enable its use in the preparation of various heterocyclic compounds, including imidazoles and triazoles, finding utility in pharmaceutical and chemical research.
Synthesis of Imidazole Derivatives
Methyl 2-chloroacetoacetate is employed in the one-pot synthesis of 2-arylimidazole-4-carboxylic acids, demonstrating its utility in constructing complex heterocyclic frameworks.
Preparation of Triazole Compounds
This chemical intermediate is utilised in the synthesis of 3,5-disubstituted 1,2,4-triazoles, highlighting its role in developing nitrogen-containing heterocyclic structures.
Organic Building Block
As a functionalised ester and alpha-halo ketone, it serves as a versatile building block in general organic synthesis for creating diverse molecular architectures.
| Molecular weight | 150.56 |
|---|---|
| Linear formula | CH3COCH(Cl)CO2CH3 |
| Boiling point | 137 °C(lit.) |
| Density | 1.236 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.446(lit.) |
| Application | Methyl 2-chloroacetoacetate was used in one-pot synthesis of 2-arylimidazole-4-carboxylic acids1. It was also used in synthesis of 3,5-disubstituted 1,2,4-triazoles2. |
| Melting point | −33-−32.7 °C(lit.) |
Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 72 °C / 161.6 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26 |
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 Methyl 2-chloroacetoacetate used for?
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Methyl 2-chloroacetoacetate is primarily used as a building block in organic synthesis, particularly for the preparation of heterocyclic compounds such as imidazoles and triazoles.
What is the CAS number and chemical formula for Methyl 2-chloroacetoacetate?
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The CAS number for Methyl 2-chloroacetoacetate is 4755-81-1 and its linear formula is CH₃COCH(Cl)CO₂CH₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl 2-chloroacetoacetate with a minimum purity of 97%. We do not represent this product as USP, BP, or EP grade. For specific assay requirements, please contact our sales team.
What are the safety considerations when handling Methyl 2-chloroacetoacetate?
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Methyl 2-chloroacetoacetate is classified as harmful if swallowed, in contact with skin, or if inhaled, and causes skin and serious eye irritation. It is also a respiratory irritant. Always handle with appropriate personal protective equipment, including gloves, eye protection, and respiratory protection, in a well-ventilated area.
Is Methyl 2-chloroacetoacetate a controlled substance?
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The provided data does not indicate that Methyl 2-chloroacetoacetate is a controlled substance.
How is Methyl 2-chloroacetoacetate packed and shipped?
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Methyl 2-chloroacetoacetate is carefully packed to ensure safe transit and is available for export globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a sample or quote for Methyl 2-chloroacetoacetate?
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To request a sample or obtain a quote for Methyl 2-chloroacetoacetate, please contact the Tech Serve Solutions sales department via our website or direct contact details.
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