4-Methoxyphenylacetaldehyde dimethylacetal
4-Methoxyphenylacetaldehyde dimethylacetal (CAS 42866-92-2), with the molecular formula C11H16O3 and a molecular weight of 196.24 g/mol, is an organic acetal. It serves as a valuable building block in organic synthesis. Its chemical structure makes it useful in the preparation of more complex molecules for various chemical research and development applications.

Organic Synthesis Intermediate
This compound is primarily employed as an intermediate in the synthesis of complex organic molecules. Its acetal functionality allows for controlled reactions in multi-step synthetic pathways.
Building Block for Research
As an organic building block, it is utilised in academic and industrial research laboratories for the exploration of novel chemical entities and reaction methodologies.
Fine Chemical Synthesis
It is suitable for use in the fine chemical industry, contributing to the production of specialised chemicals where precise molecular architecture is required.
| Molecular weight | 196.24 |
|---|---|
| Empirical formula | C11H16O3 |
| Assay | 95% |
| Density | 1.032 g/mL at 25 °C |
| Refractive index | n20/D 1.504 |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Flash point | >110 °C / >230 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 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 4-Methoxyphenylacetaldehyde dimethylacetal used for?
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4-Methoxyphenylacetaldehyde dimethylacetal (CAS 42866-92-2) is used as a building block and intermediate in organic synthesis and chemical research.
What is the CAS number and chemical formula for this product?
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The CAS number is 42866-92-2 and the empirical formula is C11H16O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methoxyphenylacetaldehyde dimethylacetal with an assay of 95%. This is a technical grade material and is not represented as USP, BP, or EP.
How should 4-Methoxyphenylacetaldehyde dimethylacetal be handled safely?
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Handle with appropriate personal protective equipment. This compound is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Ensure good ventilation and avoid contact with skin, eyes, and clothing. Refer to the Safety Data Sheet for full details.
How is this chemical packed and exported?
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This chemical is carefully packed to ensure safe transit and is available for global export. Please contact TSS for specific shipping and export details.
How can I request a quote or sample?
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To request a quote or a sample of 4-Methoxyphenylacetaldehyde dimethylacetal, please use the contact form on our website or call our sales team directly.
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