Oxacyclododecan-2-one
Oxacyclododecan-2-one (CAS: 1725-03-7), with the molecular formula C11H20O2 and a molecular weight of 184.28 g/mol, is a macrocyclic lactone. It serves as a valuable building block in organic synthesis, particularly within the fields of chemical synthesis and polymer chemistry. This compound is recognised for its utility in creating more complex molecular structures and is supplied by Tech Serve Solutions for research and development purposes.
- IUPAC
- 1-Oxa-2-cyclododecanone,11-Undecanolide,Undecanoic ω-lactone
- Synonyms
- 1-Oxa-2-cyclododecanone11-UndecanolideUndecanoic ω-lactone

Organic Synthesis Intermediate
Oxacyclododecan-2-one acts as a key intermediate in the synthesis of various organic compounds. Its lactone functionality allows for ring-opening reactions, facilitating the construction of linear molecules with diverse functional groups.
Building Block for Specialty Chemicals
This macrocyclic lactone is employed as a fundamental building block for the development of specialty chemicals and materials. Its structure is suitable for incorporation into polymers or the creation of complex molecular architectures.
Research and Development
Utilised in academic and industrial research settings, Oxacyclododecan-2-one supports investigations into new synthetic methodologies and the exploration of novel chemical entities. Its availability enables researchers to pursue innovative projects.
| Molecular weight | 184.28 |
|---|---|
| Empirical formula | C11H20O2 |
| Assay | 98% |
| Boiling point | 124-126 °C/13 mmHg(lit.) |
| Density | 0.992 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.47(lit.) |
| Melting point | 2-3 °C(lit.) |

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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 110 °C / 230 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 Oxacyclododecan-2-one used for?
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Oxacyclododecan-2-one is primarily used as a building block in organic synthesis and for chemical research and development.
What is the CAS number and formula for Oxacyclododecan-2-one?
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The CAS number is 1725-03-7 and the empirical formula is C11H20O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Oxacyclododecan-2-one with a minimum assay of 98%. This product is suitable for research and technical applications; TSS does not represent it as USP, BP, or EP grade.
What are the safety considerations when handling Oxacyclododecan-2-one?
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Oxacyclododecan-2-one is classified with GHS07 and the signal word 'Warning'. It carries hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, should be used. Handle in a well-ventilated area.
How is Oxacyclododecan-2-one shipped and exported?
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As a global supplier established in 1998, Tech Serve Solutions has extensive experience in packing, shipping, and exporting fine chemicals like Oxacyclododecan-2-one worldwide, adhering to all necessary regulations.
How can I request a quote or sample for Oxacyclododecan-2-one?
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To request a quote or a sample of Oxacyclododecan-2-one, please contact our sales team through the website or by phone. Provide your contact details and the quantity required.
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