3,5,5-Trimethylhexanal
3,5,5-Trimethylhexanal (CAS: 5435-64-3) is an aliphatic aldehyde with the molecular formula C9H18O and a molar mass of 142.24 g/mol. This compound serves as a versatile building block in organic synthesis. It is characterised by its carbonyl functional group, enabling participation in a wide range of chemical reactions. Its applications span the synthesis of more complex organic molecules, making it a valuable intermediate in chemical manufacturing and research.
- Synonyms
- 5435-64-3(CH3)3CCH2CH(CH3)CH2CHO

Organic Synthesis Intermediate
3,5,5-Trimethylhexanal acts as a key intermediate in the construction of complex organic structures. Its aldehyde functionality allows for diverse reactions such as oxidation, reduction, and nucleophilic addition, facilitating the synthesis of various derivatives.
Building Block for Fine Chemicals
This C9 aldehyde is utilised as a fundamental building block in the production of fine chemicals. Its structure can be incorporated into larger molecules, contributing to the development of speciality chemicals with tailored properties.
Research and Development
In R&D settings, 3,5,5-Trimethylhexanal is employed to explore novel synthetic pathways and to develop new chemical entities. Its availability as a reliable reagent supports academic and industrial research initiatives.
| Molecular weight | 142.24 |
|---|---|
| Linear formula | (CH3)3CCH2CH(CH3)CH2CHO |
| Assay | 95% |
| Boiling point | 67-68 °C/2.5 mmHg(lit.) |
| Density | 0.817 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.421(lit.) |


Hazard statements
- H226Flammable liquid and vapour
- 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 | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 47 °C / 116.6 °F |
| Transport (UN / ADR) | UN 1989C 3 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36/37/38 |
| Safety statements (S) | 16-26-36/37/39 |
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 3,5,5-Trimethylhexanal primarily used for?
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3,5,5-Trimethylhexanal is primarily used as an intermediate and building block in organic synthesis for the creation of fine chemicals and in research and development activities.
What is the CAS number and molecular formula for 3,5,5-Trimethylhexanal?
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The CAS number for 3,5,5-Trimethylhexanal is 5435-64-3, and its linear formula is (CH3)3CCH2CH(CH3)CH2CHO.
What grade and purity does Tech Serve Solutions supply for 3,5,5-Trimethylhexanal?
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Tech Serve Solutions supplies 3,5,5-Trimethylhexanal with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should 3,5,5-Trimethylhexanal be handled safely?
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3,5,5-Trimethylhexanal is a flammable liquid and vapour (H226) and can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment including eyeshields, face shields, and gloves, and ensure adequate ventilation. Store away from ignition sources.
How is 3,5,5-Trimethylhexanal packed, shipped, and exported?
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3,5,5-Trimethylhexanal is packed according to industry standards for safe transportation and is exported globally by Tech Serve Solutions. Shipping classifications are based on its UN number (UN 1989).
How can I request a sample or quote for 3,5,5-Trimethylhexanal?
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To request a sample or a quote for 3,5,5-Trimethylhexanal, please contact our sales team through the website or via direct inquiry, providing your requirements.
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