Description

4-Hydroxyquinoline (CAS 611-36-9) is a heterocyclic organic compound with the molecular formula C₉H₇NO. This high-purity compound, also known by its IUPAC name 1H-quinolin-4-one, is a valuable building block in pharmaceutical, agrochemical, and material science research. Its quinoline scaffold offers versatile reactivity, making it ideal for synthesizing bioactive molecules, coordination complexes, and fluorescent probes. Our product is rigorously tested for purity and consistency, ensuring reliable performance in your laboratory applications. Available in various quantities to suit research-scale and bulk needs, 4-Hydroxyquinoline is supplied with comprehensive analytical documentation including HPLC, NMR, and MS data upon request.

Properties

• CAS Number: 611-36-9
• Complexity: 198
• IUPAC Name: 1H-quinolin-4-one
• InChI: InChI=1S/C9H7NO/c11-9-5-6-10-8-4-2-1-3-7(8)9/h1-6H,(H,10,11)
• InChI Key: PMZDQRJGMBOQBF-UHFFFAOYSA-N
• Exact Mass: 145.052763847
• Molecular Formula: C9H7NO
• Molecular Weight: 145.16
• SMILES: C1=CC=C2C(=C1)C(=O)C=CN2
• Topological: 29.1
• Monoisotopic Mass: 145.052763847
• Synonyms: 4-Hydroxyquinoline, 611-36-9, Quinolin-4-ol, 4-Quinolinol, Kynurine, Quinoline, 4-hydroxy-, 4-Chinolinol, CCRIS 4329, NSC 3183, EINECS 210-268-2, M1O131WXFO, BRN 1524969, CHEBI:15815, NSC-3183, DTXSID50209980, HYDROXYQUINOLINE, 4-, DTXCID00132471, 210-268-2, quinolin-4(1H)-one, 529-37-3, 4(1H)-Quinolinone, 1H-quinolin-4-one, 4-Quinolone, MFCD00006777, MFCD00956391, 1,4-dihydroquinolin-4-one, NSC-263800, 4-hydroxy quinoline, NSC 263800; ?-Quinolone, 4-Oxoquinoline, UNII-M1O131WXFO, 1,4-Dihydro-4-quinolinone, quinoline-4-ol, 3kpu, 1,4-Dihydro-4-quinolinone; 1H-4-Oxoquinoline; 1H-Quinolin-4-one; 4-Quinolone;, 1H-quinoline-4one, 4(1H)-quinolone, 4-hydroxy-quinoline, 4-OXO-1,4-DIHYDROQUINOLINE, 4-Quinolinol, 98%, 4-HYDROXYQUINOLINE (4-QUINOLINOL), Oprea1_521432, SCHEMBL10031, 4-Quinolinol (8CI,9CI), SCHEMBL128548, SCHEMBL128549, SCHEMBL223036, SCHEMBL223037, SCHEMBL442600, SCHEMBL993688, SCHEMBL1387648, SCHEMBL3353001, SCHEMBL3353907, SCHEMBL3356786, SCHEMBL5391951, SCHEMBL5776544, SCHEMBL5798064, SCHEMBL8114720, SCHEMBL8114871, SCHEMBL9383620, CHEMBL1232567, SCHEMBL25254110, BDBM14321, NSC3183, CHEBI:155900, KUC100207N, ALBB-019954, BCP27058, CS-D1012, AB4075, AC-516, KUC100207, NSC263800, SBB086405, STL129466, STL445698, AKOS000277429, AKOS005738113, FH40512, PB43148, SB67475, AS-10846, DA-05172, HY-59208, SY002846, SY105850, DB-031602, EU-0033653, NS00034582, Q0029, ST50308193, EN300-54449, C06343, Q27098240, F0266-1090, Z818727120, InChI=1/C9H7NO/c11-9-5-6-10-8-4-2-1-3-7(8)9/h1-6H,(H,10,11

Application

4-Hydroxyquinoline serves as a key intermediate in the synthesis of antimicrobial and antimalarial agents due to its bioactive quinoline core. It is widely employed in coordination chemistry as a chelating ligand for transition metals, forming complexes with catalytic and luminescent properties. Researchers also utilize this compound in the development of organic semiconductors and fluorescent materials for optoelectronic applications.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (98%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (98%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.