3-Methyl-1,5-pentanediol
3-Methyl-1,5-pentanediol (CAS 4457-71-0) is a diol with the molecular formula HOCH2CH2CH(CH3)CH2CH2OH and a molecular weight of 118.17 g/mol. This versatile organic compound functions as a valuable building block in chemical synthesis. Its polyol structure makes it suitable for various applications in organic chemistry, particularly where hydroxyl functionalities are required for further derivatization. Tech Serve Solutions supplies this chemical for research and development purposes.
- Synonyms
- HOCH2CH2CH(CH3)CH2CH2OH

Organic Synthesis Intermediate
3-Methyl-1,5-pentanediol serves as a key intermediate in the synthesis of more complex organic molecules. Its two hydroxyl groups can participate in various reactions, including esterification, etherification, and polymerization, enabling the creation of diverse chemical structures.
Polyol in Polymer Development
As a diol, this compound can act as a monomer or co-monomer in the production of polymers. It is particularly relevant in the development of polyesters and polyurethanes, where its structure can influence the final properties of the polymer chain.
Research and Development
This chemical is utilized in laboratory settings for fundamental research and the exploration of new synthetic pathways. Its defined structure and reactivity make it a reliable reagent for academic and industrial R&D projects.
| Molecular weight | 118.17 |
|---|---|
| Linear formula | HOCH2CH2CH(CH3)CH2CH2OH |
| Assay | ≥98.0% (GC) |
| Density | 0.974 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.454 |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 143 °C / 289.4 °F |
| Water hazard class (WGK, DE) | 1 |
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-1,5-pentanediol used for?
+
3-Methyl-1,5-pentanediol is primarily used as a building block in organic synthesis and as a polyol in polymer development. It is also utilised in research and development settings.
What is the CAS number and formula for 3-Methyl-1,5-pentanediol?
+
The CAS number for 3-Methyl-1,5-pentanediol is 4457-71-0, and its linear formula is HOCH2CH2CH(CH3)CH2CH2OH.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 3-Methyl-1,5-pentanediol with an assay of ≥98.0% (GC). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling requirements for 3-Methyl-1,5-pentanediol?
+
Handling 3-Methyl-1,5-pentanediol requires appropriate personal protective equipment, including eyeshields and gloves. It is classified under WGK 1 in Germany, indicating a low hazard to water. The flash point is 143 °C (289.4 °F).
How is 3-Methyl-1,5-pentanediol packed, shipped, and exported?
+
3-Methyl-1,5-pentanediol is carefully packed for safe transport and is available for global export. Specific packaging details can be provided upon request.
How can I request a quote or sample of 3-Methyl-1,5-pentanediol?
+
To request a quote or a sample of 3-Methyl-1,5-pentanediol, please contact our sales team through the website or by phone. We are happy to assist with your requirements.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis