Acetaldehyde diethyl acetal
Acetaldehyde diethyl acetal (CAS: 105-57-7, Formula: CH3CH(OC2H5)2) is a chemical compound with a molecular weight of 118.17 g/mol. This organic acetal, also known as 1,1-Diethoxyethane, serves as a valuable building block in organic synthesis. It is recognised for its role in chemical reactions and as a component in research applications, particularly within cell biology and nutrition research due to its presence in certain phytochemicals.
- IUPAC
- 1,1-Diethoxyethane,Acetal
- Synonyms
- 1,1-DiethoxyethaneAcetalAcetaldehyde, diethyl acetal

Organic Synthesis Intermediate
Acetaldehyde diethyl acetal is utilised as a versatile intermediate in organic synthesis. Its acetal functionality allows for protection of aldehyde groups or can participate in various condensation and addition reactions.
Research and Development
This compound finds application in laboratory settings for research purposes, including studies in cell biology and nutrition. It may be used in the investigation of phytochemical pathways and related biological processes.
Chemical Building Block
As a foundational organic building block, acetaldehyde diethyl acetal is employed in the construction of more complex organic molecules. Its structure makes it suitable for incorporation into diverse synthetic targets.
| Molecular weight | 118.17 |
|---|---|
| Linear formula | CH3CH(OC2H5)2 |
| Assay | 99% |
| Boiling point | 102 °C(lit.) |
| Density | 0.831 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.379-1.383(lit.) |
| Vapour pressure | 20 mmHg (20 °C)8 mmHg (8 °C) |
| Vapour density | 4.1 (vs air) |
| Autoignition temp | 446 °F |


Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- 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 | -21 °C / -5.8 °F |
| Transport (UN / ADR) | UN 1088 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/38 |
| Safety statements (S) | 9-16-33 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 10.4 % |
|---|
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 Acetaldehyde diethyl acetal used for?
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Acetaldehyde diethyl acetal is used as an intermediate in organic synthesis and in research applications, including cell biology and nutrition research.
What is the CAS number and formula for Acetaldehyde diethyl acetal?
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The CAS number is 105-57-7 and the chemical formula is CH3CH(OC2H5)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Acetaldehyde diethyl acetal with a minimum assay of 99%. This product is intended for laboratory and research use; TSS does not represent it as USP, BP, EP, or pharmacopoeia grade.
How should Acetaldehyde diethyl acetal be handled safely?
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Acetaldehyde diethyl acetal is flammable and causes skin and serious eye irritation. Handle with appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation and keep away from heat and ignition sources. Refer to the Safety Data Sheet for full details.
Is Acetaldehyde diethyl acetal a controlled substance?
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The provided data does not indicate that Acetaldehyde diethyl acetal is a controlled substance.
How is Acetaldehyde diethyl acetal packed and shipped?
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Acetaldehyde diethyl acetal is shipped according to UN 1088, Class 3, Packing Group II regulations. TSS ensures compliance with all relevant shipping and export regulations.
How can I request a sample or quote for Acetaldehyde diethyl acetal?
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To request a sample or a quote, please contact our sales department through the website or by phone, providing the product name and CAS number (105-57-7).
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