2-ethoxy-3,4-dihydro-2H-pyran
C7H12O2
Consulting for 2-ethoxy-3,4-dihydro-2H-pyran
Our experts support you with application, dosage, and compliance.
Identification
- CAS Number
- 103-75-3
- EC Number
- 203-141-8
- UN Number
- 1993
- PubChem CID
- 7676
Physical-chemical properties
- Molecular Formula
- C7H12O2
- Molar Mass
- 128.17 g/mol
- IUPAC Name
- 2-ethoxy-3,4-dihydro-2H-pyran
Chemical Identifiers
- InChI
- InChI=1S/C7H12O2/c1-2-8-7-5-3-4-6-9-7/h4,6-7H,2-3,5H2,1H3
- InChI Key
- VZJFPIXCMVSTID-UHFFFAOYSA-N
Overview
2-ethoxy-3,4-dihydro-2H-pyran (CAS 103-75-3) is a cyclic ether compound with protective properties commonly used in organic synthesis applications. This specialized chemical intermediate belongs to the family of dihydropyran derivatives and serves as an important building block in various synthetic processes. With the molecular formula C7H12O2 and a molecular weight of 128.17 g/mol, this compound features a six-membered ring structure containing both oxygen atoms that contribute to its unique reactivity profile. The ethoxy substituent enhances its stability and solubility characteristics, making it particularly valuable for specific industrial applications. From a safety perspective, 2-ethoxy-3,4-dihydro-2H-pyran is classified under ADR Class 3, indicating its flammable nature, though it does not carry specific GHS pictograms or signal words under current classification systems. This relatively favorable safety profile makes it more manageable compared to some related compounds in industrial settings. Proper handling procedures should still be followed, including appropriate ventilation and fire prevention measures typical for flammable organic solvents. The compound finds primary application in pharmaceutical intermediate synthesis, where its protecting group capabilities are particularly valued. It is also utilized in specialty chemical manufacturing and research applications requiring selective functional group protection. These applications often overlap with those of related compounds such as 2-ethylbutyl acetate, which shares similar synthetic utility in different chemical contexts. Industrial users appreciate its consistent performance in multi-step synthetic sequences, where reliability and predictable reactivity are essential. OYSI maintains reliable supply chains for this specialized chemical intermediate to support European industrial customers' technical requirements.
Safety & Classification
No Hazard Classification
This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.
Transport (ADR)
| UN Number | 1993 |
| ADR Class | 3 |
| Packing Group | III |
| Tunnel Code | D/E |
| Proper Shipping Name | 2-Ethoxy-3,4-dihydro-2H-pyran |
| Marine Pollutant | No |
Frequently Asked Questions
What is 2-ethoxy-3,4-dihydro-2H-pyran?
2-ethoxy-3,4-dihydro-2H-pyran is an organic chemical compound with the molecular formula C7H12O2 and CAS number 103-75-3. This heterocyclic compound features a six-membered ring containing one oxygen atom, with an ethoxy substituent. With a molecular weight of 128.17 g/mol, it belongs to the pyran family of compounds and serves various applications in chemical synthesis and industrial processes.
What are the physicochemical properties of 2-ethoxy-3,4-dihydro-2H-pyran?
2-ethoxy-3,4-dihydro-2H-pyran is a liquid organic compound at room temperature with moderate volatility. As a cyclic ether derivative, it exhibits typical properties of oxygen-containing heterocycles, including good solubility in organic solvents. The compound's structure, featuring both ether linkages and a saturated ring system, influences its reactivity and physical characteristics, making it suitable for various synthetic applications.
What is 2-ethoxy-3,4-dihydro-2H-pyran used for?
2-ethoxy-3,4-dihydro-2H-pyran serves as an important intermediate in organic synthesis and pharmaceutical manufacturing. This compound is commonly used in the production of fine chemicals, as a protecting group reagent in synthetic chemistry, and as a building block for more complex molecules. Its unique structure makes it valuable in the synthesis of various organic compounds, particularly in pharmaceutical and agrochemical industries.
How to handle 2-ethoxy-3,4-dihydro-2H-pyran safely?
2-ethoxy-3,4-dihydro-2H-pyran should be handled with standard laboratory safety precautions including wearing appropriate personal protective equipment such as safety glasses, gloves, and lab coats. Work in well-ventilated areas or under fume hoods to minimize exposure to vapors. Avoid contact with skin, eyes, and clothing. Use proper handling techniques for organic chemicals and ensure good ventilation during use to prevent accumulation of vapors.
How to store 2-ethoxy-3,4-dihydro-2H-pyran correctly?
2-ethoxy-3,4-dihydro-2H-pyran should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers properly labeled and store away from incompatible materials such as strong oxidizing agents. Maintain storage temperatures according to supplier specifications and ensure proper secondary containment. Regular inspection of containers for leaks or deterioration is recommended for safe storage.
What to do in case of contact with 2-ethoxy-3,4-dihydro-2H-pyran?
In case of skin contact with 2-ethoxy-3,4-dihydro-2H-pyran, immediately wash the affected area with plenty of soap and water for at least 15 minutes. For eye contact, flush thoroughly with water for several minutes and seek medical attention if irritation persists. If inhaled, move to fresh air immediately. Remove contaminated clothing and wash before reuse. Seek medical advice if symptoms develop or persist after exposure.
How to dispose of 2-ethoxy-3,4-dihydro-2H-pyran properly?
2-ethoxy-3,4-dihydro-2H-pyran must be disposed of according to local and national waste regulations as an organic chemical waste. Contact licensed waste disposal companies for proper handling and treatment. Do not pour down drains or dispose of in regular trash. Small quantities may be suitable for incineration at appropriate facilities. Always consult safety data sheets and local environmental authorities for specific disposal requirements in your region.
How to transport 2-ethoxy-3,4-dihydro-2H-pyran?
2-ethoxy-3,4-dihydro-2H-pyran is classified under ADR Class 3 (flammable liquids), Packing Group III for transportation purposes. This classification requires appropriate packaging, labeling, and documentation according to dangerous goods regulations. Shipments must comply with international transport regulations including proper packaging specifications, hazard labels, and shipping papers. Only trained personnel should handle transportation arrangements for this chemical substance.
Is 2-ethoxy-3,4-dihydro-2H-pyran subject to specific regulations?
2-ethoxy-3,4-dihydro-2H-pyran is subject to standard chemical regulations including REACH registration requirements in Europe for commercial use. The compound is not classified as a Substance of Very High Concern (SVHC) and has no specific GHS hazard classification. However, it must comply with general chemical safety regulations, proper labeling requirements, and workplace safety standards. Users should maintain safety data sheets and follow good chemical hygiene practices.
Where to buy 2-ethoxy-3,4-dihydro-2H-pyran in Europe?
2-ethoxy-3,4-dihydro-2H-pyran is available through OYSI, a trusted European distributor of specialty chemicals and industrial raw materials. OYSI provides reliable supply chains across Europe with proper documentation, quality assurance, and regulatory compliance. For purchasing inquiries, technical specifications, availability, and delivery options, contact OYSI directly through their official channels to discuss your specific requirements and obtain current pricing information.
Services for 2-ethoxy-3,4-dihydro-2H-pyran
Order 2-ethoxy-3,4-dihydro-2H-pyran
Fast delivery across Europe
SDS Service
Request Safety Data Sheet for 2-ethoxy-3,4-dihydro-2H-pyran
Technical Consulting
Application advice for 2-ethoxy-3,4-dihydro-2H-pyran
REACH Safety Data Sheet
REACH Compliance Service
Digital Product Passport
EU-compliant product documentation
ADR Consulting for 2-ethoxy-3,4-dihydro-2H-pyran
2-ethoxy-3,4-dihydro-2H-pyran is a dangerous good. We support you with labeling, packaging, and transport documentation.
Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.