cis-4-Cyclopentene-1,3-diol
cis-4-Cyclopentene-1,3-diol (CAS 29783-26-4), a cyclic organic compound with the molecular formula C5H8O2 and a molecular weight of 100.12 g/mol, serves as a crucial building block in chemical synthesis. Its primary application lies in the preparation of natural products and intermediates for prostaglandin synthesis, owing to its characteristic cyclopentanoid structure. Tech Serve Solutions offers this chemical with a high purity assay, making it suitable for demanding research and development applications.
- IUPAC
- cis-3,5-Dihydroxy-1-cyclopentene
- Synonyms
- cis-3,5-Dihydroxy-1-cyclopenteneC5H8O2

Natural Product Synthesis
cis-4-Cyclopentene-1,3-diol is an essential intermediate for constructing natural products that incorporate cyclopentanoid structural motifs. Its specific stereochemistry and functional groups facilitate complex synthetic pathways.
Prostaglandin Intermediate Preparation
This compound has been utilised in the synthesis of key intermediates required for the preparation of prostaglandins and their analogues. Its structure is well-suited for elaboration into these biologically significant molecules.
Organic Synthesis Building Block
As a versatile cyclic diol with an alkene functionality, cis-4-Cyclopentene-1,3-diol is valuable in general organic synthesis for creating diverse cyclic structures and functionalised molecules.
| Molecular weight | 100.12 |
|---|---|
| Empirical formula | C5H8O2 |
| Assay | ≥99.0% (GC) |
| Application | cis-4-Cyclopentene-1,3-diol is an important building block for the synthesis of natural products with cyclopentanoid structure elements.1 It was used in preparation of key intermediates of prostaglandin synthesis.2 |
| Melting point | 55-59 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 cis-4-Cyclopentene-1,3-diol used for?
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cis-4-Cyclopentene-1,3-diol is primarily used as a building block in organic synthesis, particularly for the preparation of natural products with cyclopentanoid structures and as an intermediate in prostaglandin synthesis.
What is the CAS number and formula for cis-4-Cyclopentene-1,3-diol?
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The CAS number for cis-4-Cyclopentene-1,3-diol is 29783-26-4, and its empirical formula is C5H8O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies cis-4-Cyclopentene-1,3-diol with an assay of ">99.0% (GC)". We do not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product data.
How should cis-4-Cyclopentene-1,3-diol be handled?
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cis-4-Cyclopentene-1,3-diol is classified as a Warning substance, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). When handling, wear appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure adequate ventilation and avoid breathing dust. In case of eye contact, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do.
Is cis-4-Cyclopentene-1,3-diol a controlled substance?
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The provided data does not indicate that cis-4-Cyclopentene-1,3-diol is a controlled substance.
How can I request a quote or sample for cis-4-Cyclopentene-1,3-diol?
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To request a quote or sample, please use the 'Request a Quote' or 'Request a Sample' button on the product page, or contact our sales team directly with your requirements.
How is cis-4-Cyclopentene-1,3-diol shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, equipped to handle international shipping and export logistics for cis-4-Cyclopentene-1,3-diol in compliance with all relevant regulations.
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