2H-Pyran-2-one, 3,4-dihydro-6-methyl-

Also known as: 3,4-Dihydro-6-methyl-2H-pyran-2-one, 6-Methyl-3,4-dihydro-2H-pyran-2-one, 6-methyl-3,4-dihydropyran-2-one, 5-Hydroxy-4-hexenoic acid lactone, NSC 134780, MFCD00012357

2H-Pyran-2-one, 3,4-dihydro-6-methyl- (CAS 3740-59-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H8O2 and a molecular weight of 112.12700 g/mol. Key properties include a boiling point of 193ºC at 760mmHg, a density of 1.065g/cm3 and a flash point of 78.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3740-59-8
Jingsj CID: J-11008-7
Molecular Formula: C₆H₈O₂
Molecular Weight: 112.12700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	193ºC at 760mmHg
Density	1.065g/cm3
Flash Point	78.9ºC
Exact Mass	112.05200
PSA	26.30000
LogP	1.22720
Refractive Index	n20/D 1.4677(lit.)

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 2H-Pyran-2-one, 3,4-dihydro-6-methyl-?

The CAS number of 2H-Pyran-2-one, 3,4-dihydro-6-methyl- is 3740-59-8.

What are the molecular formula and molecular weight of 2H-Pyran-2-one, 3,4-dihydro-6-methyl-?

2H-Pyran-2-one, 3,4-dihydro-6-methyl- has molecular formula C6H8O2 and molecular weight 112.12700 g/mol.

What are the upstream and downstream products of 2H-Pyran-2-one, 3,4-dihydro-6-methyl-?

For 2H-Pyran-2-one, 3,4-dihydro-6-methyl-, Upstream Products: 5-Hexynoic acid, 5-Oxohexanoic acid, 5-Hexenoic acid; Downstream Products: 1,3-Cyclohexanedione, delta-Hexalactone, 5-Oxohexanoic acid.

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. "2H-Pyran-2-one, 3,4-dihydro-6-methyl- (CAS 3740-59-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11008-7 (accessed 2026-11-09).

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