3,4-Dihydro-2-methoxy-2H-pyran

Also known as: 2-Methoxy-3,4-dihydro-2H-pyran, Dihydromethoxypyran, 2H-Pyran, 3,4-dihydro-2-methoxy-, MFCD00006560, EINECS 224-698-3

3,4-Dihydro-2-methoxy-2H-pyran (CAS 4454-05-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H10O2 and a molecular weight of 114.142 g/mol. Key properties include a boiling point of 149.3±39.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 16.7±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4454-05-1
Jingsj CID: J-19581-3
Molecular Formula: C₆H₁₀O₂
Molecular Weight: 114.142 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	149.3±39.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	16.7±0.0 °C
Exact Mass	114.068077
PSA	18.46000
LogP	-0.09
Vapor Pressure	5.1±0.3 mmHg at 25°C
Refractive Index	1.451

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3,4-Dihydro-2-methoxy-2H-pyran?

The CAS number of 3,4-Dihydro-2-methoxy-2H-pyran is 4454-05-1.

What are the molecular formula and molecular weight of 3,4-Dihydro-2-methoxy-2H-pyran?

3,4-Dihydro-2-methoxy-2H-pyran has molecular formula C6H10O2 and molecular weight 114.142 g/mol.

What are the upstream and downstream products of 3,4-Dihydro-2-methoxy-2H-pyran?

For 3,4-Dihydro-2-methoxy-2H-pyran, Upstream Products: Methyl Vinyl Ether, Acrolein, Hydroquinone; Downstream Products: 3-Chloropyridine, 3,5-Dichloropyridine, 2-Methoxytetrahydro-2H-pyran.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "3,4-Dihydro-2-methoxy-2H-pyran (CAS 4454-05-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19581-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.