2-Nonanone
Also known as: Heptyl methyl ketone, Methyl heptyl ketone, Nonan-2-one, FEMA 2785, Methyl n-heptyl ketone, n-C7H15COCH3
2-Nonanone (CAS 821-55-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H18O and a molecular weight of 142.239 g/mol. Key properties include a melting point of −21 °C(lit.), a boiling point of 193.5±3.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 65.7±12.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 821-55-6
- Jingsj CID
- J-44432-7
- Molecular Formula
- C9H18O
- Molecular Weight
- 142.239 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −21 °C(lit.) |
|---|---|
| Boiling Point | 193.5±3.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 65.7±12.6 °C |
| Exact Mass | 142.135757 |
| PSA | 17.07000 |
| LogP | 3.03 |
| Vapor Pressure | 0.6±0.4 mmHg at 25°C |
| Refractive Index | 1.417 |
| Additional Property | ca 0.5 g/L |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H412 — Harmful to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 29141990 |
|---|
Frequently Asked Questions
What is the CAS number of 2-Nonanone?
The CAS number of 2-Nonanone is 821-55-6.
What are the molecular formula and molecular weight of 2-Nonanone?
2-Nonanone has molecular formula C9H18O and molecular weight 142.239 g/mol.
Is 2-Nonanone hazardous?
2-Nonanone has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H412 — Harmful to aquatic life with long lasting effects.
What are the upstream and downstream products of 2-Nonanone?
For 2-Nonanone, Upstream Products: nonene, 2-Nonanol, 3-Nonen-2-one; Downstream Products: 2-Decanone, 3-decanone, 1-hexene.
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-Nonanone (CAS 821-55-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44432-7 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.