(±)-3-Butene-1,2-diol
(±)-3-Butene-1,2-diol (CAS 497-06-3) is an unsaturated diol with the molecular formula CH2=CHCH(OH)CH2OH and a molecular weight of 88.11 g/mol. This acyclic organic building block finds utility in various chemical synthesis applications, serving as a versatile intermediate. Its unique structure, featuring both a double bond and two hydroxyl groups, allows for diverse reactivity in organic transformations.
- Synonyms
- CH2=CHCH(OH)CH2OH

Organic Synthesis Intermediate
Utilised as a precursor in the synthesis of more complex organic molecules. The presence of both alkene and diol functionalities allows for a wide range of chemical reactions.
Polymer Chemistry
Can serve as a monomer or cross-linking agent in the development of speciality polymers, leveraging its reactive hydroxyl and vinyl groups.
Fine Chemical Production
Employed in the multi-step synthesis of fine chemicals where specific functional group manipulation is required.
| Molecular weight | 88.11 |
|---|---|
| Linear formula | CH2=CHCH(OH)CH2OH |
| Assay | ≥98.5% (GC) |
| Boiling point | 196.5 °C(lit.) |
| Density | 1.047 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.462 |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22 |
| Safety statements (S) | 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 (±)-3-Butene-1,2-diol used for?
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(±)-3-Butene-1,2-diol is primarily used as an intermediate in organic synthesis and in polymer chemistry due to its reactive alkene and diol functionalities.
What is the CAS number and formula for (±)-3-Butene-1,2-diol?
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The CAS number is 497-06-3 and the linear formula is CH2=CHCH(OH)CH2OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (±)-3-Butene-1,2-diol with an assay of ≥98.5% (GC). We do not represent this product as USP, BP, or EP grade.
How should (±)-3-Butene-1,2-diol be handled?
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Handle with appropriate personal protective equipment, including eyeshields and gloves. This compound is classified as harmful if swallowed, in contact with skin, or if inhaled, requiring careful handling to avoid exposure.
Does TSS export (±)-3-Butene-1,2-diol?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including (±)-3-Butene-1,2-diol, which can be packed and shipped worldwide.
How can I request a sample or quote for (±)-3-Butene-1,2-diol?
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Please contact our sales team directly through our website or by phone to request a sample or a quotation for (±)-3-Butene-1,2-diol.
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