1,5-Pentanediol
1,5-Pentanediol (CAS: 111-29-5), a linear diol with the molecular formula HO(CH2)5OH, is a versatile organic compound. It serves as a key building block in chemical synthesis and finds utility in the production of polymers, resins, and plasticizers. Its two primary alcohol groups allow for diverse chemical reactions, making it valuable in various industrial applications. Tech Serve Solutions supplies this compound for research and industrial purposes.
- IUPAC
- Pentamethylene glycol
- Synonyms
- Pentamethylene glycolHO(CH2)5OH

Polymer Synthesis
1,5-Pentanediol acts as a monomer or chain extender in the synthesis of polyesters and polyurethanes. It contributes flexibility and other desirable properties to the resulting polymers, used in coatings, adhesives, and elastomers.
Chemical Intermediates
This diol is a valuable intermediate for producing other organic chemicals, including cyclic ethers and diacids. Its reactive hydroxyl groups facilitate various esterification and etherification reactions.
Plasticizers and Solvents
Its properties lend themselves to use as a plasticizer in certain polymer formulations, enhancing flexibility. It can also function as a high-boiling solvent in specific industrial processes.
| Molecular weight | 104.15 |
|---|---|
| Linear formula | HO(CH2)5OH |
| Assay | ≥95.0% (GC) |
| Boiling point | 242 °C(lit.) |
| Density | 0.994 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.450(lit.)n20/D 1.450 |
| Vapour pressure | <0.01 mmHg (20 °C) |
| Autoignition temp | 635 °F |
| Flash point | 129 °C / 264.2 °F |
|---|---|
| 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 1,5-Pentanediol used for?
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1,5-Pentanediol is primarily used as a building block in chemical synthesis, particularly for producing polymers like polyesters and polyurethanes, and as an intermediate for other organic compounds. It may also find use as a plasticizer or solvent.
What are the CAS number and formula for 1,5-Pentanediol?
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The CAS number for 1,5-Pentanediol is 111-29-5, and its linear formula is HO(CH2)5OH.
What grade and purity does Tech Serve Solutions supply for 1,5-Pentanediol?
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Tech Serve Solutions supplies 1,5-Pentanediol with an assay of ≥95.0% (GC). This product is supplied for technical and laboratory use. TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade.
How should 1,5-Pentanediol be handled safely?
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1,5-Pentanediol has a flash point of 129 °C (264.2 °F) and is combustible. Handle in a well-ventilated area, away from ignition sources. Consult the Safety Data Sheet (SDS) for comprehensive safety and handling information.
How is 1,5-Pentanediol typically packed and shipped?
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1,5-Pentanediol is carefully packed in suitable containers to ensure safe transit and storage. Tech Serve Solutions expertly handles global export logistics for this chemical.
How can I request a sample or quote for 1,5-Pentanediol?
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To request a sample or a quote for 1,5-Pentanediol, please contact our sales team through the website or by phone. We will promptly respond to your inquiry.
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