4-Acetoxy-3,5-dimethoxybenzaldehyde
4-Acetoxy-3,5-dimethoxybenzaldehyde (CAS 53669-33-3) is a chemical compound with the molecular formula CH3CO2C6H2(OCH3)2CHO and a molecular weight of 224.21 g/mol. This substituted benzaldehyde derivative serves as a valuable intermediate and building block in organic synthesis. Its structure, featuring an aldehyde group and an acetoxy-protected hydroxyl group on a dimethoxybenzene ring, allows for diverse chemical transformations. It is primarily used in research and development settings for the creation of more complex organic molecules.
- Synonyms
- CH3CO2C6H2(OCH3)2CHO

Organic Synthesis Intermediate
This compound functions as a key intermediate in multi-step organic synthesis. Its functional groups allow for selective reactions, enabling the construction of complex molecular architectures.
Building Block for Fine Chemicals
As a versatile building block, 4-Acetoxy-3,5-dimethoxybenzaldehyde is employed in the development of various fine chemicals and specialty compounds. It contributes to the synthesis of novel materials and research chemicals.
Research and Development
Primarily utilized in laboratory settings, this chemical supports academic and industrial R&D efforts. Its specific structure makes it useful for exploring new synthetic routes and chemical entities.
| Molecular weight | 224.21 |
|---|---|
| Linear formula | CH3CO2C6H2(OCH3)2CHO |
| Assay | 98% |
| Melting point | 115-117 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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-Acetoxy-3,5-dimethoxybenzaldehyde used for?
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4-Acetoxy-3,5-dimethoxybenzaldehyde is primarily used as an intermediate and building block in organic synthesis for research and development purposes.
What is the CAS number and chemical formula for 4-Acetoxy-3,5-dimethoxybenzaldehyde?
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The CAS number is 53669-33-3 and the linear formula is CH3CO2C6H2(OCH3)2CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Acetoxy-3,5-dimethoxybenzaldehyde with a minimum purity of 98%. This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for this chemical?
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This compound is classified as a Warning. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment including a dust mask (type N95 US), eyeshields, and gloves in a well-ventilated area.
How is 4-Acetoxy-3,5-dimethoxybenzaldehyde packed and shipped by TSS?
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Tech Serve Solutions exports fine chemicals globally. Packaging is carefully selected to ensure product integrity during transit. Specific packing details can be provided upon request for export orders.
How can I request a quote or sample for 4-Acetoxy-3,5-dimethoxybenzaldehyde?
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To request a quote or a sample, please contact our sales department through the website or by phone. Provide the product name and CAS number (53669-33-3) for prompt service.
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