3-Ethyl-3-methyl-2-pentanone
Also known as: 1-Methyl-1.1-diaethyl-aceton, 1-acetyl-1-ethyl-1-methylpropane, 2-Pentanone, 3-ethyl-3-methyl-, 3-Aethyl-3-methyl-pentan-2-on, 3-Ethyl-3-methyl-2-pentanone, 3-ethyl-3-methyl-pentan-2-one, 3-ethyl-3-methylpentan-2-one, 3-methyl-3-ethyl-2-pentanone
3-Ethyl-3-methyl-2-pentanone (CAS 19780-65-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H16O and a molecular weight of 128.21200 g/mol. Key properties include a boiling point of 154ºC at 760 mmHg, a density of 0.812g/cm3 and a flash point of 34.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 19780-65-5
- Jingsj CID
- J-1492907-8
- Molecular Formula
- C8H16O
- Molecular Weight
- 128.21200 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 154ºC at 760 mmHg |
|---|---|
| Density | 0.812g/cm3 |
| Flash Point | 34.4ºC |
| Exact Mass | 128.12000 |
| PSA | 17.07000 |
| LogP | 2.40170 |
| Vapor Pressure | 3.25mmHg at 25°C |
| Refractive Index | 1.41 |
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-Ethyl-3-methyl-2-pentanone?
The CAS number of 3-Ethyl-3-methyl-2-pentanone is 19780-65-5.
What are the molecular formula and molecular weight of 3-Ethyl-3-methyl-2-pentanone?
3-Ethyl-3-methyl-2-pentanone has molecular formula C8H16O and molecular weight 128.21200 g/mol.
What are the upstream and downstream products of 3-Ethyl-3-methyl-2-pentanone?
For 3-Ethyl-3-methyl-2-pentanone, Upstream Products: Acetyl chloride, 2-Ethyl-2-methylbutanoic acid, Ethyl 2-ethylbutanoate; Downstream Products: 2-Ethyl-2-methylbutanoic acid.
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-Ethyl-3-methyl-2-pentanone (CAS 19780-65-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492907-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.