3-Methyl-2-cyclohexen-1-ol
3-Methyl-2-cyclohexen-1-ol (CAS: 21378-21-2, Formula: CH3C6H8OH) is a cyclic organic building block with a molecular weight of 112.17 g/mol. This unsaturated alcohol is recognised for its utility in organic synthesis. It has been specifically employed in the development of vitamin D3 derivatives and in the synthesis of pheromones relevant to insect biology, such as that of the Douglas-fir beetle.

Synthesis of Vitamin D Derivatives
3-Methyl-2-cyclohexen-1-ol serves as a precursor in the synthetic pathways leading to complex molecules like 19-nor-1α, 25-dihydroxyvitamin D(3) derivatives.
Insect Pheromone Synthesis
This compound has been utilised in the laboratory for the synthesis of sex pheromones, notably for the Douglas-fir beetle, contributing to entomological research.
Organic Synthesis Building Block
As a cyclic alkene with a hydroxyl functional group, 3-Methyl-2-cyclohexen-1-ol offers versatile reactivity for constructing more complex organic structures in research and development.
| Molecular weight | 112.17 |
|---|---|
| Linear formula | CH3C6H8OH |
| Assay | 96% |
| Boiling point | 56 °C/1 mmHg(lit.) |
| Density | 0.946 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.484(lit.) |
| Application | 3-Methyl-2-cyclohexen-1-ol was used in the synthesis of 19-nor-1α, 25-dihydroxyvitamin D(3) derivatives1. It was also used in sex pheromone of the Douglas-fir beetle.2 |
| Flash point | 72 °C / 161.6 °F |
|---|---|
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
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-Methyl-2-cyclohexen-1-ol primarily used for?
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3-Methyl-2-cyclohexen-1-ol is primarily used as a building block in organic synthesis, including applications in the preparation of vitamin D3 derivatives and insect pheromones.
What is the CAS number and chemical formula for 3-Methyl-2-cyclohexen-1-ol?
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The CAS number for 3-Methyl-2-cyclohexen-1-ol is 21378-21-2, and its chemical formula is CH3C6H8OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Methyl-2-cyclohexen-1-ol with a minimum purity of 96%. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 3-Methyl-2-cyclohexen-1-ol be handled safely?
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3-Methyl-2-cyclohexen-1-ol is a combustible liquid with a flash point of 72 °C (161.6 °F). Handle with care, away from ignition sources, and use appropriate personal protective equipment. Refer to the Safety Data Sheet for detailed handling information.
Does TSS export 3-Methyl-2-cyclohexen-1-ol?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3-Methyl-2-cyclohexen-1-ol.
How can I request a quote or sample for 3-Methyl-2-cyclohexen-1-ol?
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To request a quote or a sample of 3-Methyl-2-cyclohexen-1-ol, please contact our sales team through the website or by calling our main office.
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