1,4-Butanediol
1,4-Butanediol (CAS: 110-63-4), also known as HO(CH2)4OH, is a versatile diol with a molecular weight of 90.12 g/mol. This clear, viscous liquid serves as a crucial building block in organic synthesis. Its primary applications include the production of polymers such as polyurethanes and polyesters, and as a key intermediate in the synthesis of other important chemicals.
- IUPAC
- 1,4-Butylene glycol,Tetramethylene glycol
- Synonyms
- HO(CH2)4OH1,4-Butylene glycolTetramethylene glycol
Polymer Synthesis
1,4-Butanediol is a primary monomer in the production of polybutylene terephthalate (PBT), a thermoplastic polyester known for its strength and resistance. It is also a precursor to tetrahydrofuran (THF), which is used to make polytetramethylene ether glycol (PTMEG), a component in spandex fibres and polyurethanes.
Chemical Intermediate
It acts as a chain extender in polyurethane production, enhancing the properties of elastomers and coatings. Additionally, it is a precursor for gamma-butyrolactone (GBL), a solvent and intermediate in various chemical processes.
Solvent Applications
Due to its diol structure and polarity, 1,4-Butanediol can function as a solvent in certain industrial applications, particularly where high boiling point and solvency for polar compounds are required.
| Molecular weight | 90.12 |
|---|---|
| Linear formula | HO(CH2)4OH |
| Assay | ≥99% (GC) |
| Boiling point | 230 °C(lit.) |
| Density | 1.017 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.445(lit.) |
| Vapour density | 3.1 (vs air) |
| Melting point | 16 °C(lit.) |
| Autoignition temp | 698 °F |
| Impurities tested | ≤0.1% water (Karl Fischer) |
Hazard statements
- H302Harmful if swallowed
- H336May cause drowsiness or dizziness
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 134 °C / 273.2 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-67 |
| Safety statements (S) | 23-36 |
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 1,4-Butanediol used for?
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1,4-Butanediol is primarily used as a monomer and intermediate in the synthesis of polymers like polyurethanes, polyesters (including PBT), and as a precursor to tetrahydrofuran (THF) and gamma-butyrolactone (GBL).
What are the CAS number and formula for 1,4-Butanediol?
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The CAS number for 1,4-Butanediol is 110-63-4, and its linear formula is HO(CH2)4OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,4-Butanediol with an assay of ≥99% (GC). We do not represent this product as USP, BP, or EP grade.
What are the primary hazards associated with 1,4-Butanediol?
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1,4-Butanediol is classified with the GHS symbol GHS07 and signal word Warning. It carries hazard statements H302 (Harmful if swallowed) and H336 (May cause drowsiness or dizziness). Appropriate personal protective equipment, including safety glasses and gloves, should be used, and handling should occur in a well-ventilated area.
How is 1,4-Butanediol packed, shipped, or exported?
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1,4-Butanediol is available in various packaging suitable for laboratory and industrial use. Tech Serve Solutions handles all export documentation and compliance requirements for international shipments.
How can I request a sample or quote for 1,4-Butanediol?
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To request a sample or a detailed quote, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
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