2-Allyloxytetrahydropyran
2-Allyloxytetrahydropyran (CAS: 4203-49-0), with the molecular formula C8H14O2 and a molecular weight of 142.20, is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Its utility lies in its reactive functional groups, making it a versatile intermediate for creating more complex molecular structures. The compound is supplied with approximately 1% K2CO3 as a stabilizer.

Organic Synthesis Intermediate
2-Allyloxytetrahydropyran is primarily utilised as an intermediate in complex organic synthesis pathways. Its structure allows for various chemical transformations, enabling the construction of diverse molecular frameworks.
Heterocyclic Chemistry Research
As a pyran derivative, this compound finds application in research focused on heterocyclic chemistry. It can be employed in the development of novel heterocyclic compounds with potential applications in materials science or medicinal chemistry.
Building Block for Fine Chemicals
This chemical acts as a fundamental building block for the synthesis of fine chemicals. Its specific structural features can be leveraged to introduce desired functionalities into target molecules.
| Molecular weight | 142.20 |
|---|---|
| Empirical formula | C8H14O2 |
| Assay | 98% |
| Boiling point | 76-77 °C/25 mmHg(lit.) |
| Density | 0.940 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4275(lit.) |
| Storage temperature | 2-8°C |
| Contains / stabiliser | ~1% K2CO3 as stabilizer |



Hazard statements
- H226Flammable liquid and vapour
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 35 °C / 95 °F |
| Transport (UN / ADR) | UN 3271 3 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 10-19-22-37/38-41 |
| Safety statements (S) | 26-39 |
| Supplemental hazards | May form explosive peroxides. |
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 2-Allyloxytetrahydropyran used for?
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2-Allyloxytetrahydropyran (CAS: 4203-49-0) is primarily used as a building block and intermediate in organic synthesis, particularly in heterocyclic chemistry research for creating complex molecular structures.
What are the CAS number and formula for 2-Allyloxytetrahydropyran?
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The CAS number for 2-Allyloxytetrahydropyran is 4203-49-0, and its empirical formula is C8H14O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Allyloxytetrahydropyran with an assay of 98%. This product is not represented as USP, BP, EP, or pharmacopoeia grade.
How should 2-Allyloxytetrahydropyran be handled safely?
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2-Allyloxytetrahydropyran is a flammable liquid and vapour (H226), harmful if swallowed (H302), causes skin irritation (H315), may cause an allergic skin reaction (H317), causes serious eye damage (H318), and may cause respiratory irritation (H335). It may also form explosive peroxides. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area. Store at 2-8°C and keep away from heat and ignition sources. It is classified as Danger.
How is 2-Allyloxytetrahydropyran packed and shipped?
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2-Allyloxytetrahydropyran is shipped as a UN 3271 (Flammable liquid, n.o.s.) with packing group III. Specific packaging details for export are available upon request.
How can I request a quote or sample?
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To request a quote or a sample of 2-Allyloxytetrahydropyran, please contact our sales team through the website or by phone.
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