3-Amino-2-cyclohexen-1-one
Also known as: 3-aminocyclohex-2-en-1-one, 3-aminocyclohex-2-enone, 3-Amino-2-cyclohexen-1-one hydrate, 1-Aminocyclohexene-3-one, 2-Cyclohexen-1-one, 3-amino-
3-Amino-2-cyclohexen-1-one (CAS 5220-49-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H9NO and a molecular weight of 111.142 g/mol. Key properties include a melting point of 129-133 °C(lit.), a boiling point of 212.4±30.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 82.3±24.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5220-49-5
- Jingsj CID
- J-7525-2
- Molecular Formula
- C6H9NO
- Molecular Weight
- 111.142 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 129-133 °C(lit.) |
|---|---|
| Boiling Point | 212.4±30.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 82.3±24.6 °C |
| Exact Mass | 111.068413 |
| PSA | 43.09000 |
| LogP | -0.22 |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.520 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 3-Amino-2-cyclohexen-1-one?
The CAS number of 3-Amino-2-cyclohexen-1-one is 5220-49-5.
What are the molecular formula and molecular weight of 3-Amino-2-cyclohexen-1-one?
3-Amino-2-cyclohexen-1-one has molecular formula C6H9NO and molecular weight 111.142 g/mol.
Is 3-Amino-2-cyclohexen-1-one hazardous?
3-Amino-2-cyclohexen-1-one has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 3-Amino-2-cyclohexen-1-one?
For 3-Amino-2-cyclohexen-1-one, Upstream Products: 1,3-Cyclohexanedione, 3-Aminophenol, m-Phenylenediamine; Downstream Products: Ethyl 5-oxo-5,6,7,8-tetrahydroquinoline-3-carboxylate, 5,6,7,8-tetrahydroquinolin-5-one, 3,4'-Oxydianiline.
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-Amino-2-cyclohexen-1-one (CAS 5220-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7525-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.