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2-Hydroxyquinoline-3-carbaldehyde

Also known as: 1,2-Dihydro-2-oxoquinoline-3-carbaldehyde, 1,2-Dihydro-2-oxoquinoline-3-carboxaldehyde, 2-OXO-1,2-DIHYDRO-3-QUINOLINECARBALDEHYDE, 2-OXO-1,2-DIHYDRO-3-QUINOLINECARBOXALDEHYDE, 2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBALDEHYDE, 2-Oxo-1,2-dihydro-3-quinolinecarbaldehyde, 2-oxo-1,2-dihydroquinoline-3-carbaldehyde, 2-oxo-1H-quinoline-3-carbaldehyde, AKOS BBS-00005352, IFLAB-BB F0342-0036

2-Hydroxyquinoline-3-carbaldehyde (CAS 91301-03-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H7NO2 and a molecular weight of 173.16800 g/mol. Key properties include a melting point of >250ºC, a boiling point of 434.9ºC at 760mmHg, a density of 1.367g/cm3 and a flash point of 208.7ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
91301-03-0
Jingsj CID
J-1083582-2
Molecular Formula
C10H7NO2
Molecular Weight
173.16800 g/mol
Category
Pharma Intermediates
Last updated
11/3/2026
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Physicochemical Properties

Melting Point>250ºC
Boiling Point434.9ºC at 760mmHg
Density1.367g/cm3
Flash Point208.7ºC
Exact Mass173.04800
PSA50.19000
LogP1.75290
Refractive Index1.684

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2933499090
Summary2933499090. 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-Hydroxyquinoline-3-carbaldehyde?

The CAS number of 2-Hydroxyquinoline-3-carbaldehyde is 91301-03-0.

What are the molecular formula and molecular weight of 2-Hydroxyquinoline-3-carbaldehyde?

2-Hydroxyquinoline-3-carbaldehyde has molecular formula C10H7NO2 and molecular weight 173.16800 g/mol.

Is 2-Hydroxyquinoline-3-carbaldehyde hazardous?

2-Hydroxyquinoline-3-carbaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2-Hydroxyquinoline-3-carbaldehyde?

For 2-Hydroxyquinoline-3-carbaldehyde, Upstream Products: 2-Chloroquinoline-3-carbaldehyde, Acetanilide, 3,4-Diaminotoluene; Downstream Products: 1H-Pyrazolo[3,4-b]quinolin-3-amine, 2-chloroquinoline-3-carbonitrile, 2-Oxo-1,2-dihydroquinoline-3-carbonitrile.

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-Hydroxyquinoline-3-carbaldehyde (CAS 91301-03-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1083582-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.