2,5-Heptanedione

Also known as: Heptane-2,5-dione, Heptan-2,5-dione

2,5-Heptanedione (CAS 1703-51-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H12O2 and a molecular weight of 128.16900 g/mol. Key properties include a boiling point of 208.3ºC at 760 mmHg, a density of 0.926 g/cm3 and a flash point of 74.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1703-51-1
Jingsj CID: J-881481-1
Molecular Formula: C₇H₁₂O₂
Molecular Weight: 128.16900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	208.3ºC at 760 mmHg
Density	0.926 g/cm3
Flash Point	74.3ºC
Exact Mass	128.08400
PSA	34.14000
LogP	1.33470
Vapor Pressure	0.216mmHg at 25°C
Refractive Index	1.413

Customs & Trade Information

HS Code	2914190090
Summary	2914190090 other acyclic ketones without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,5-Heptanedione?

The CAS number of 2,5-Heptanedione is 1703-51-1.

What are the molecular formula and molecular weight of 2,5-Heptanedione?

2,5-Heptanedione has molecular formula C7H12O2 and molecular weight 128.16900 g/mol.

What are the upstream and downstream products of 2,5-Heptanedione?

For 2,5-Heptanedione, Upstream Products: 2-Oxobutanoic acid, Propionaldehyde, 1-Penten-3-one; Downstream Products: 2-Ethyl-5-methylthiophene.

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. "2,5-Heptanedione (CAS 1703-51-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-881481-1 (accessed 2026-11-09).

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