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

2-甲酰基-3,4-二氢吡喃

Also known as: 2-Formyl-3,4-dihydro-2H-pyran, Acrolein dimer, 2-Propenal dimer, 2H-Pyran-2-carboxaldehyde, 3,4-dihydro-, 3,4-Dihydro-2H-pyran-2-carboxaldehyde, Pyran aldehyde, 2-formyldihydropyran, 5-Hexenal, 2,6-epoxy-

3,4-Dihydro-2H-pyran-2-carbaldehyde (CAS 100-73-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H8O2 and a molecular weight of 112.127 g/mol. It is also known as 2-Formyl-3,4-dihydro-2H-pyran, Acrolein dimer and 2-Propenal dimer. Key properties include a melting point of -100ºC, a boiling point of 185.1±39.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 73.4±20.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
100-73-2
Jingsj CID
J-1512850-2
Molecular Formula
C6H8O2
Chinese Name
2-甲酰基-3,4-二氢吡喃
Molecular Weight
112.127 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-100ºC
Boiling Point185.1±39.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point73.4±20.6 °C

Frequently Asked Questions

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

The CAS number of 3,4-Dihydro-2H-pyran-2-carbaldehyde is 100-73-2.

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

3,4-Dihydro-2H-pyran-2-carbaldehyde has molecular formula C6H8O2 and molecular weight 112.127 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-Dihydro-2H-pyran-2-carbaldehyde (CAS 100-73-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1512850-2 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.