2-Methyl-1,3-cyclopentanedione
Also known as: 2-Methylcyclopentane-1,3-dione, 2-Methylcyclopentan-1,3-dione, Methylcycle-D, 1,3-Cyclopentanedione, 2-methyl-
2-Methyl-1,3-cyclopentanedione (CAS 765-69-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H8O2 and a molecular weight of 112.127 g/mol. Key properties include a melting point of 212-215 °C(lit.), a boiling point of 218.0±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 78.5±19.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 765-69-5
- Jingsj CID
- J-49057-3
- Molecular Formula
- C6H8O2
- Molecular Weight
- 112.127 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 212-215 °C(lit.) |
|---|---|
| Boiling Point | 218.0±23.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 78.5±19.6 °C |
| Exact Mass | 112.052429 |
| PSA | 34.14000 |
| LogP | -0.78 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.463 |
Activity & Biological Data
| Additional Information | [1]. Victor J. Grenda, et al. A convenient synthesis of 2-methylcyclopentane-1,3-dione. RETURN TO ISSUEPREVARTICLENEXT |
|---|
Customs & Trade Information
| HS Code | 2914299000 |
|---|---|
| Summary | 2914299000. other cyclanic, cyclenic or cyclotherpenic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Methyl-1,3-cyclopentanedione?
The CAS number of 2-Methyl-1,3-cyclopentanedione is 765-69-5.
What are the molecular formula and molecular weight of 2-Methyl-1,3-cyclopentanedione?
2-Methyl-1,3-cyclopentanedione has molecular formula C6H8O2 and molecular weight 112.127 g/mol.
What are the upstream and downstream products of 2-Methyl-1,3-cyclopentanedione?
For 2-Methyl-1,3-cyclopentanedione, Upstream Products: 1,2-Bis(trimethylsilyloxy)cyclobutene, 1,1-Dimethoxyethane, 3-Methylcyclopentane-1,2,4-trione; Downstream Products: 2-Methyl-3-oxocyclopent-1-en-1-yl acetate, Diisopropyl succinate, Dimethyl succinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methyl-1,3-cyclopentanedione (CAS 765-69-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49057-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.