3-Methyl-2-pentanone
Also known as: (±)-3-methyl-pentan-2-one, 2-Pentanone,3-methyl-, 2-Pentanone,3-methyl-,(±)-, 3-METHYL-2-PENTANONE, 3-methyl-2-pentanon, 3-methyl-pentan-2-one, 3-methylpentan-2-one, EINECS 209-282-1, METHYL SEC-BUTYL KETONE, MFCD00009336, SEC-BUTYL METHYL KETONE
3-Methyl-2-pentanone (CAS 565-61-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H12O and a molecular weight of 100.15900 g/mol. Key properties include a boiling point of 118 °C758 mm Hg(lit.), a density of 0.815 g/mL at 25 °C(lit.) and a flash point of 12.2 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 565-61-7
- Jingsj CID
- J-13779-1
- Molecular Formula
- C6H12O
- Molecular Weight
- 100.15900 g/mol
- Category
- Ketones
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 118 °C758 mm Hg(lit.) |
|---|---|
| Density | 0.815 g/mL at 25 °C(lit.) |
| Flash Point | 12.2 °C |
| Exact Mass | 100.08900 |
| PSA | 17.07000 |
| LogP | 1.62150 |
| Refractive Index | n20/D 1.4(lit.) |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 3-Methyl-2-pentanone?
The CAS number of 3-Methyl-2-pentanone is 565-61-7.
What are the molecular formula and molecular weight of 3-Methyl-2-pentanone?
3-Methyl-2-pentanone has molecular formula C6H12O and molecular weight 100.15900 g/mol.
Is 3-Methyl-2-pentanone hazardous?
3-Methyl-2-pentanone has GHS signal word Danger.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Methyl-2-pentanone (CAS 565-61-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13779-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.