3-Methylcyclopentanol, mixture of isomers
3-Methylcyclopentanol (CAS 18729-48-1) is an organic compound with the linear formula CH3C5H8OH and a molecular weight of 100.16 g/mol. This alcohol exists as a mixture of isomers. Supplied by TSS at 99% purity, it serves as a valuable building block in organic synthesis, finding applications in the preparation of complex molecules and derivatives for research and development purposes.
- Synonyms
- CH3C5H8OH

Synthesis of Phosphazene Derivatives
3-Methylcyclopentanol is employed in the synthesis of pentacycloalkoxy-substituted phosphazenes, contributing to the development of novel materials with unique properties.
Preparation of Alkyl Halides
This compound serves as a precursor for the synthesis of 3-methyl cyclopentylbromide, a versatile intermediate in various organic transformations.
Organic Building Block
As a cyclic alcohol, 3-Methylcyclopentanol functions as a foundational building block in complex organic synthesis, enabling the construction of intricate molecular architectures.
| Molecular weight | 100.16 |
|---|---|
| Linear formula | CH3C5H8OH |
| Assay | 99% |
| Boiling point | 149-150 °C(lit.) |
| Density | 0.91 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.446(lit.) |
| Application | 3-Methylcyclopentanol has been used in the synthesis of pentacycloalkoxy-substituted phosphazenes1 and 3-methyl cyclopentylbromide2. |

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 | 55 °C / 131 °F |
| Transport (UN / ADR) | UN 1987C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 16 |
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-Methylcyclopentanol, mixture of isomers used for?
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3-Methylcyclopentanol is used in organic synthesis, including the preparation of pentacycloalkoxy-substituted phosphazenes and 3-methyl cyclopentylbromide. It serves as a valuable building block in chemical synthesis.
What are the CAS number and formula for 3-Methylcyclopentanol?
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The CAS number for 3-Methylcyclopentanol, mixture of isomers, is 18729-48-1. Its linear formula is CH3C5H8OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Methylcyclopentanol, mixture of isomers, at a purity of 99%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety hazards associated with 3-Methylcyclopentanol?
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3-Methylcyclopentanol is a flammable liquid and vapour (H226). It requires handling with appropriate personal protective equipment, including eyeshields and gloves, and in well-ventilated areas away from ignition sources.
Is 3-Methylcyclopentanol available for export?
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Yes, Tech Serve Solutions specialises in global supply and export of fine chemicals, including 3-Methylcyclopentanol.
How can I request a sample or quote for 3-Methylcyclopentanol?
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To request a sample or quote for 3-Methylcyclopentanol, please contact the Tech Serve Solutions sales team through our website or designated contact channels.
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