Chloroacetaldehyde diethyl acetal
Chloroacetaldehyde diethyl acetal (CAS: 621-62-5) is a valuable organic building block with the linear formula ClCH2CH(OC2H5)2 and a molecular weight of 152.62 g/mol. Supplied with a typical assay of 99%, this acetal serves as a key intermediate in various chemical synthesis pathways. Its properties make it suitable for applications in the production of diverse organic compounds, particularly where a protected form of chloroacetaldehyde is required.
- IUPAC
- 2-Chloro-1,1-diethoxyethane,Chloroacetal
- Synonyms
- 2-Chloro-1,1-diethoxyethaneChloroacetal

Organic Synthesis Intermediate
Utilised as a versatile building block in multi-step organic syntheses. Its acetal functionality allows for selective reactions, making it useful in the preparation of complex molecules.
Pharmaceutical Precursor
Can serve as a precursor in the synthesis of active pharmaceutical ingredients (APIs). The chloroacetaldehyde moiety can be further functionalised or deprotected to introduce specific chemical structures.
Agrochemical Development
Employed in the development and manufacturing of agrochemicals. It can be incorporated into synthetic routes for new herbicides, pesticides, or plant growth regulators.
| Molecular weight | 152.62 |
|---|---|
| Linear formula | ClCH2CH(OC2H5)2 |
| Assay | 99% |
| Boiling point | 157 °C(lit.) |
| Density | 1.018 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.416(lit.) |
| Vapour pressure | <0.02 atm (20 °C) |
| Autoignition temp | 401 °F |


Hazard statements
- H226Flammable liquid and vapour
- H302Harmful if swallowed
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 50 °C / 122 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 10-22 |
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 Chloroacetaldehyde diethyl acetal used for?
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Chloroacetaldehyde diethyl acetal is primarily used as a building block in organic synthesis, a precursor for pharmaceuticals, and in the development of agrochemicals. It serves as a protected form of chloroacetaldehyde for controlled chemical reactions.
What is the CAS number and formula for Chloroacetaldehyde diethyl acetal?
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The CAS number is 621-62-5, and its linear formula is ClCH2CH(OC2H5)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Chloroacetaldehyde diethyl acetal with a typical assay of 99%. We do not represent this product as USP, BP, or EP grade unless explicitly stated otherwise.
What are the main safety hazards associated with Chloroacetaldehyde diethyl acetal?
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This compound is flammable (H226) and harmful if swallowed (H302). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, should be used when handling.
How is Chloroacetaldehyde diethyl acetal packed, shipped, and exported?
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As a global supplier and exporter of fine chemicals, TSS ensures that Chloroacetaldehyde diethyl acetal is packed, shipped, and exported in compliance with all relevant international regulations for hazardous materials.
How can I request a quote or sample for Chloroacetaldehyde diethyl acetal?
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To request a quote or sample, please contact our sales team through the website or by phone, providing your contact details and the quantity required.
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