2-Quinolinol
Also known as: 2-Hydroxyquinoline, Carbostyril, 2(1H)-Quinolinone, Quinolin-2-ol, 2-Oxo-1,2-dihydroquinoline, 2-Quinolone, 1,2-Dihydroquinolin-2-one, 2-quinolinone
2-Quinolinol (CAS 59-31-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO and a molecular weight of 145.158 g/mol. Key properties include a melting point of 198-199 °C(lit.), a boiling point of 352.9±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 167.2±20.4 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 59-31-4
- Jingsj CID
- J-1522709-6
- Molecular Formula
- C9H7NO
- Molecular Weight
- 145.158 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 198-199 °C(lit.) |
|---|---|
| Boiling Point | 352.9±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 167.2±20.4 °C |
| Exact Mass | 145.052765 |
| PSA | 32.86000 |
| LogP | 1.95 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.691 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933499090 |
|---|---|
| Summary | 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2-Quinolinol?
The CAS number of 2-Quinolinol is 59-31-4.
What are the molecular formula and molecular weight of 2-Quinolinol?
2-Quinolinol has molecular formula C9H7NO and molecular weight 145.158 g/mol.
Is 2-Quinolinol hazardous?
2-Quinolinol has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of 2-Quinolinol?
For 2-Quinolinol, Upstream Products: 2-Chloro-3-iodoquinoline, Ethyl 4,4,4-trifluoroacetoacetate, 2-Acetamidobenzaldehyde; Downstream Products: 2-Hydroxyquinoline-3-carbaldehyde, 3,4-Dihydroquinolin-2(1H)-one, 5,6,7,8-Tetrahydroquinolin-2(1H)-one.
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-Quinolinol (CAS 59-31-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522709-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.