3,4-Dimethylbenzaldehyde
3,4-Dimethylbenzaldehyde (CAS 5973-71-7) is an organic compound with the molecular formula C9H10O and a molar mass of 134.18 g/mol. This aromatic aldehyde, characterised by its two methyl groups attached to the benzene ring, serves as a valuable building block in organic synthesis. It is widely employed in the preparation of more complex molecules, contributing to advancements in chemical research and development.
- Synonyms
- (CH3)2C6H3CHO

Organic Synthesis Intermediate
3,4-Dimethylbenzaldehyde is utilised as a key intermediate in the synthesis of various organic compounds. Its aldehyde functional group allows for diverse chemical transformations, making it useful in constructing more complex molecular structures for research purposes.
Research and Development
This compound finds application in chemical research and development laboratories. It serves as a starting material or reagent in exploratory synthesis projects, aiding in the discovery of new chemical entities and reaction pathways.
Building Block for Fine Chemicals
As a C9 aromatic aldehyde, 3,4-Dimethylbenzaldehyde functions as a versatile building block for fine chemicals. It can be incorporated into the synthesis of speciality chemicals and advanced materials requiring specific structural motifs.
| Molecular weight | 134.18 |
|---|---|
| Linear formula | (CH3)2C6H3CHO |
| Assay | 98% |
| Boiling point | 226 °C(lit.) |
| Density | 1.012 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.551(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 3,4-Dimethylbenzaldehyde primarily used for?
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3,4-Dimethylbenzaldehyde (CAS 5973-71-7) is primarily used as an intermediate and building block in organic synthesis and chemical research and development.
What is the CAS number and chemical formula for 3,4-Dimethylbenzaldehyde?
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The CAS number is 5973-71-7 and the linear chemical formula is (CH3)2C6H3CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Dimethylbenzaldehyde with an assay of 98%. This product is typically suitable for research and technical applications; TSS does not represent it as USP, BP, EP, or other pharmacopoeial grades unless explicitly stated.
What are the safety and handling precautions for 3,4-Dimethylbenzaldehyde?
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Handle 3,4-Dimethylbenzaldehyde with appropriate personal protective equipment, including eyeshields and gloves. Respiratory protection, such as a type N95 (US) or type P1 (EN143) respirator filter, may be necessary. The compound is classified under WGK 2 in Germany.
How is 3,4-Dimethylbenzaldehyde packed and shipped?
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3,4-Dimethylbenzaldehyde is carefully packed for shipping and export to maintain its integrity during transit. Specific packaging details are available upon request.
How can I request a quote or sample for 3,4-Dimethylbenzaldehyde?
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To request a quote or a sample of 3,4-Dimethylbenzaldehyde, please contact our sales team through the website or by phone.
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