1,2-Butanediol
1,2-Butanediol (CAS 584-03-2) is a diol with the linear formula CH3CH2CH(OH)CH2OH and a molecular weight of 90.12 g/mol. This clear liquid serves as a valuable building block in organic synthesis. It is utilized in various chemical research applications, including the preparation of organometallic compounds and the study of thermodynamic properties of liquid mixtures. Available at ≥98.0% purity, it is suitable for laboratory and industrial chemical processes.
- IUPAC
- 1,2-Butylene glycol
- Synonyms
- 1,2-Butylene glycolButane-1,2-diol

Dilatometric Measurements
1,2-Butanediol has been employed in studies investigating the dilatometric measurements of excess molar volumes and excess partial molar volumes within binary mixtures containing N,N-dimethylformamide and other 1,2-alkanediols.
Preparation of Titanium Complexes
This diol is used in the preparation of 1,2-diolates of titanium. The synthesis involves the reaction of 1,2-Butanediol with titanium (IV) isopropoxide or titanium (IV) chloride.
Organic Synthesis Intermediate
As a versatile diol, 1,2-Butanediol functions as a key building block in various organic synthesis pathways, contributing to the development of more complex molecular structures.
| Molecular weight | 90.12 |
|---|---|
| Linear formula | CH3CH2CH(OH)CH2OH |
| Assay | ≥98.0% (GC) |
| Boiling point | 191-192 °C/747 mmHg(lit.) |
| Density | 1.006 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.438(lit.)n20/D 1.438 |
| Application | 1,2-Butanediol has been used:• to investigate dilatometric measurements of excess molar volumes and excess partial molar volumes for binary mixtures of N,N-dimethylformamide with 1,2-alkanediols1 • in the preparation of 1,2-diolates of titanium by reaction with titanium (IV) isopropoxide or titanium (IV) chloride2 |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 93 °C / 199.4 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 2 |
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 1,2-Butanediol used for?
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1,2-Butanediol is used as a building block in organic synthesis, for dilatometric measurements of excess molar volumes, and in the preparation of titanium complexes.
What is the CAS number and chemical formula for 1,2-Butanediol?
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The CAS number is 584-03-2 and the linear formula is CH3CH2CH(OH)CH2OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,2-Butanediol with an assay of ≥98.0% (GC). We do not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for 1,2-Butanediol?
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Recommended personal protective equipment includes eyeshields and gloves. 1,2-Butanediol has a flash point of 93 °C (199.4 °F). Please consult the Safety Data Sheet for comprehensive handling information.
How is 1,2-Butanediol packed and shipped?
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1,2-Butanediol is classified under NA 1993 / PGIII for transportation. Products are carefully packed and exported by Tech Serve Solutions to meet international shipping standards.
How can I request a quote or sample for 1,2-Butanediol?
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To request a quote or a sample, please contact the Tech Serve Solutions sales team through our website or by phone. Please specify the quantity required.
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