2-Methyl-3-pentanone
2-Methyl-3-pentanone (CAS 565-69-5) is a C6 ketone with the linear formula (CH3)2CHCOC2H5 and a molecular weight of 100.16 g/mol. This clear, colourless liquid serves as a versatile building block in organic synthesis. It is primarily used in chemical manufacturing and research applications requiring a specific ketone functionality, contributing to the development of more complex organic molecules and materials.
- IUPAC
- Ethyl isopropyl ketone
- Synonyms
- Ethyl isopropyl ketone

Organic Synthesis Intermediate
2-Methyl-3-pentanone functions as a key intermediate in the synthesis of various organic compounds. Its ketone group allows for diverse chemical transformations, making it valuable in multi-step synthetic pathways.
Laboratory Reagent
Utilised in research and development laboratories, this compound serves as a reagent for chemical reactions and analytical procedures. Its defined properties support reproducible experimental outcomes.
Fine Chemical Manufacturing
It is employed in the production of fine chemicals where specific structural or functional group incorporation is required. Its availability as a building block aids in the efficient construction of target molecules.
| Molecular weight | 100.16 |
|---|---|
| Linear formula | (CH3)2CHCOC2H5 |
| Assay | 97% |
| Grade | purum |
| Boiling point | 113 °C(lit.) |
| Density | 0.811 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.397(lit.) |

Hazard statements
- H225Highly flammable liquid and vapour
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 11 °C / 51.8 °F |
| Transport (UN / ADR) | UN 1224BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| Safety statements (S) | 9-16-23-33 |
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-Methyl-3-pentanone primarily used for?
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2-Methyl-3-pentanone is primarily used as a building block and intermediate in organic synthesis and in laboratory research.
What is the CAS number and chemical formula for 2-Methyl-3-pentanone?
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The CAS number is 565-69-5 and the linear formula is (CH3)2CHCOC2H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Methyl-3-pentanone with an assay of 97% and a 'purum' grade. This is a technical grade suitable for general laboratory and synthesis purposes and is not represented as USP, BP, or EP grade.
How should 2-Methyl-3-pentanone be handled safely?
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2-Methyl-3-pentanone is a flammable liquid (flash point 11 °C) and should be handled with appropriate precautions. It requires the use of eyeshields, gloves, and suitable respiratory protection, such as an ABEK respirator filter, due to potential irritation and flammability hazards. Store away from ignition sources.
Is 2-Methyl-3-pentanone a controlled substance?
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Based on the provided data, 2-Methyl-3-pentanone (CAS 565-69-5) is not listed as a controlled substance.
How is 2-Methyl-3-pentanone packed and exported?
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2-Methyl-3-pentanone is packed and shipped according to UN 1224 regulations for flammable liquids. Tech Serve Solutions is experienced in global export procedures for chemical reagents and intermediates.
How can I request a quote or sample for 2-Methyl-3-pentanone?
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To request a quote or sample, please use the contact form on our website or reach out to our sales department directly, providing the product name and CAS number (565-69-5).
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