3-Methylcyclopentanone
3-Methylcyclopentanone (CAS: 1757-42-2, Formula: C₆H₁₀O, Molar Mass: 98.14 g/mol) is a cyclic ketone recognised for its utility in chemical synthesis. This organic building block serves as a versatile intermediate in the creation of more complex molecules. It is particularly valuable in research and development settings, contributing to advancements in various chemical fields. Tech Serve Solutions supplies this compound with a minimum assay of 99%.

Organic Synthesis Intermediate
3-Methylcyclopentanone functions as a key building block in the synthesis of various organic compounds. Its ketone functionality allows for a range of chemical transformations, making it valuable in multistep syntheses.
Research and Development
This compound is employed in laboratory settings for R&D purposes, aiding in the exploration of new synthetic routes and the development of novel chemical entities. Its predictable reactivity makes it a reliable reagent.
Fine Chemical Production
As a component within the C3 to C6 and carbonyl compound categories, 3-Methylcyclopentanone is utilised in the production of fine chemicals. It contributes to the diverse portfolio of chemical synthesis reagents.
| Molecular weight | 98.14 |
|---|---|
| Linear formula | CH3C5H7(=O) |
| Assay | 99% |
| Boiling point | 145 °C(lit.) |
| Density | 0.913 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.434(lit.) |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 34 °C / 93.2 °F |
| Transport (UN / ADR) | UN 1224C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
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-Methylcyclopentanone used for?
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3-Methylcyclopentanone is used as a versatile intermediate and building block in organic synthesis and research and development activities.
What is the CAS number and chemical formula for 3-Methylcyclopentanone?
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The CAS number for 3-Methylcyclopentanone is 1757-42-2, and its chemical formula is C₆H₁₀O.
What grade and purity does Tech Serve Solutions supply for 3-Methylcyclopentanone?
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Tech Serve Solutions supplies 3-Methylcyclopentanone with a minimum assay of 99%. This product is not represented as USP, BP, or EP grade.
What are the main hazards associated with 3-Methylcyclopentanone?
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3-Methylcyclopentanone is a flammable liquid and vapour (H226). It requires careful handling in well-ventilated areas away from ignition sources. Appropriate personal protective equipment, including safety eyewear and gloves, should be worn.
How is 3-Methylcyclopentanone packed, shipped, and exported?
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3-Methylcyclopentanone is packed and shipped according to relevant transport regulations for flammable liquids. Tech Serve Solutions exports chemicals globally to qualified customers.
How can I request a sample or quote for 3-Methylcyclopentanone?
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To request a sample or obtain a quote for 3-Methylcyclopentanone, please contact our sales team through the website or direct inquiry channels.
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