3-Methyl-2,4-pentanedione
Also known as: 1,1-Diacetylethane, Methylacetylacetone, 3-Acetyl-2-butanone, 3-Acetylbutan-2-one, 3-Methylpentane-2,4-dione, 2,4-Pentanedione, 3-methyl-, NSC 15756
3-Methyl-2,4-pentanedione (CAS 815-57-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H10O2 and a molecular weight of 114.14200 g/mol. Key properties include a melting point of 190 - 191ºC, a boiling point of 172-174 °C(lit.), a density of 0.981 g/mL at 25 °C(lit.) and a flash point of 56.7 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 815-57-6
- Jingsj CID
- J-45516-3
- Molecular Formula
- C6H10O2
- Molecular Weight
- 114.14200 g/mol
- Category
- Ketones
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 190 - 191ºC |
|---|---|
| Boiling Point | 172-174 °C(lit.) |
| Density | 0.981 g/mL at 25 °C(lit.) |
| Flash Point | 56.7 °C |
| Exact Mass | 114.06800 |
| PSA | 34.14000 |
| LogP | 0.80050 |
| Refractive Index | n20/D 1.442(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 3-Methyl-2,4-pentanedione?
The CAS number of 3-Methyl-2,4-pentanedione is 815-57-6.
What are the molecular formula and molecular weight of 3-Methyl-2,4-pentanedione?
3-Methyl-2,4-pentanedione has molecular formula C6H10O2 and molecular weight 114.14200 g/mol.
Is 3-Methyl-2,4-pentanedione hazardous?
3-Methyl-2,4-pentanedione has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 3-Methyl-2,4-pentanedione?
For 3-Methyl-2,4-pentanedione, Upstream Products: 2,4-Pentanedione, iodomethane, Formaldehyde; Downstream Products: 3-Methyl-2-pentanone, 3,4,5-Trimethyl-1H-pyrazole, Methyl 2,4-dihydroxy-3,6-dimethylbenzoate.
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-2,4-pentanedione (CAS 815-57-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45516-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.