2,4,5-Trimethylbenzaldehyde
2,4,5-Trimethylbenzaldehyde (CAS 5779-72-6) is an organic compound with the linear formula (CH₃)₃C₆H₂CHO and a molecular weight of 148.20 g/mol. This aromatic aldehyde serves as a valuable building block in organic synthesis, particularly within chemical research and development. Its specific trimethyl substitution pattern makes it a useful intermediate for constructing more complex molecular architectures in various scientific and industrial applications.
- Synonyms
- 5779-72-6(CH3)3C6H2CHO

Organic Synthesis Intermediate
Serves as a key intermediate in the synthesis of diverse organic molecules. Its aldehyde functionality and substituted aromatic ring allow for a range of chemical transformations.
Research and Development
Utilised in laboratory settings for the exploration of new chemical pathways and the development of novel compounds with potential applications in materials science or pharmaceuticals.
Building Block for Fine Chemicals
Acts as a foundational component for the production of more complex fine chemicals, leveraging its unique structural features for targeted synthesis.
| Molecular weight | 148.20 |
|---|---|
| Linear formula | (CH3)3C6H2CHO |
| Assay | 90% |
| Impurities tested | 7% 5-bromo-1,2,4-trimethylbenzene |
| Melting point | 41-46 °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
| Flash point | 110 °C / 230 °F |
|---|---|
| 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 2,4,5-Trimethylbenzaldehyde used for?
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2,4,5-Trimethylbenzaldehyde is primarily used as a building block and intermediate in organic synthesis and chemical research and development.
What is the CAS number and formula for 2,4,5-Trimethylbenzaldehyde?
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The CAS number is 5779-72-6 and the linear formula is (CH₃)₃C₆H₂CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4,5-Trimethylbenzaldehyde with an assay of 90%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 2,4,5-Trimethylbenzaldehyde be handled safely?
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2,4,5-Trimethylbenzaldehyde is a warning irritant. Handle with appropriate personal protective equipment (PPE), ensuring good ventilation. Avoid contact with skin, eyes, and clothing. In case of contact, rinse immediately and thoroughly. Refer to the Safety Data Sheet (SDS) for comprehensive safety information.
Is 2,4,5-Trimethylbenzaldehyde a controlled substance?
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Based on the provided data, there is no indication that 2,4,5-Trimethylbenzaldehyde is a controlled substance.
How is 2,4,5-Trimethylbenzaldehyde packed, shipped, and exported?
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Tech Serve Solutions exports fine chemicals globally. Packaging is designed to maintain product integrity during transit. Please contact us for specific shipping and export details.
How can I request a quote or sample for 2,4,5-Trimethylbenzaldehyde?
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To request a quote or sample, please use the contact form on our website or email our sales department directly, referencing the product name and CAS number 5779-72-6.
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