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4-Hydroxyquinoline

4-Hydroxyquinoline structure

CAS No.: 611-36-9

Chemical Name:: 4-Hydroxyquinoline

Synonyms: KYNURINE;AKOS 222-32;4-QUINOLINOL;QUINOLIN-4-OL;4-HydroxyquinoL;4-Quinolinol 98%;4-Quinolinol >1H-Quinolin-4-one;4(1H)-QUINOLINONE;4-hydroxy-quinolin

CBNumber:: CB2372460

Molecular Formula:: C9H7NO

Molecular Weight:: 145.16

MDL Number:: MFCD00006777

MOL File:: 611-36-9.mol

MSDS File:: SDS

Last updated:2026-01-26 13:56:28

Product description	Number	Pack Size	Price
4-Quinolinol 98%	H58005	1g	$26.7
4-Quinolinol 98%	H58005	5g	$123
4-Quinolinol >98.0%(GC)(T)	Q0029	5g	$63
4-Quinolinol >98.0%(GC)(T)	Q0029	25g	$249
4-Quinolinol 98%	H58005	10g	$192
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4-Hydroxyquinoline Properties

Melting point	200-202 °C(lit.)
Boiling point	264.27°C (rough estimate)
Density	1.1555 (rough estimate)
refractive index	1.4500 (estimate)
storage temp.	Sealed in dry,Room Temperature
solubility	Soluble in methanol.
pka	2.23, 11.28(at 20℃)
form	Crystalline Powder or Needles
color	Light beige to yellow
Water Solubility	4.8g/L(15 ºC)
BRN	1524969
InChI	1S/C9H7NO/c11-9-5-6-10-8-4-2-1-3-7(8)9/h1-6H,(H,10,11)
InChIKey	PMZDQRJGMBOQBF-UHFFFAOYSA-N
SMILES	Oc1ccnc2ccccc12
LogP	2.450 (est)
CAS DataBase Reference	611-36-9(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	M1O131WXFO
NIST Chemistry Reference	4-Quinolinol(611-36-9)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P264-P271-P280-P302+P352-P305+P351+P338

target organs

Respiratory system

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

36/37/38

Safety Statements

26-36-37/39

WGK Germany

RTECS

VC4070000

HS Code

29334900

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

NFPA 704

	0
2		0

4-Hydroxyquinoline price More Price(36)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	H58005	4-Quinolinol 98%	611-36-9	1g	$26.7	2025-07-31	Buy
Sigma-Aldrich	H58005	4-Quinolinol 98%	611-36-9	5g	$123	2025-07-31	Buy
TCI Chemical	Q0029	4-Quinolinol >98.0%(GC)(T)	611-36-9	5g	$63	2025-07-31	Buy
TCI Chemical	Q0029	4-Quinolinol >98.0%(GC)(T)	611-36-9	25g	$249	2025-07-31	Buy
Sigma-Aldrich	H58005	4-Quinolinol 98%	611-36-9	10g	$192	2025-07-31	Buy

Product number	Packaging	Price	Buy
H58005	1g	$26.7	Buy
H58005	5g	$123	Buy
Q0029	5g	$63	Buy
Q0029	25g	$249	Buy
H58005	10g	$192	Buy

4-Hydroxyquinoline Chemical Properties,Uses,Production

Description

4-Hydroxyquinoline is a quinoline alkaloid that has been found in Z. lotus honeys. It is a core component of alkyl-4-hydroxyquinoline quorum sensing molecules such as 2-heptyl-3-hydroxy-4(1H)-quinolone and 2-nonyl-3-hydroxy-4-quinolone. 4-Hydroxyquinoline has been used as a precursor in the synthesis of compounds with antibacterial activity. It has also been used as a fluorescent detection reagent for iron(III) in bovine liver samples.

Chemical Properties

LIGHT BEIGE TO YELLOWISH CRYST. POWDER OR NEEDLES

Uses

4-Hydroxyquinolineis is a raw material in medical research, a hydroxylated quinoline derivative with antimicrobial activity. 4-Hydroxyquinoline showed growth-inhibitory effects against intestinal bacteria. 4-Hydroxyquinoline act as sacrifi cial scavengers of the photogenerated oxygen species and has been shown to prevent the photodegradation of riboflavin.

Definition

ChEBI: A monohydroxyquinoline carrying a hydroxy group at position 4.

Synthesis Reference(s)

Journal of the American Chemical Society, 68, p. 1264, 1946 DOI: 10.1021/ja01211a038

General Description

4-Quinolinol (4-quinolone) is a quinolone compound which forms the core moiety of antibacterials such as norfloxacin, nalidixic acid, ciprofloxacin and cinoxacin.

Biological Activity

4-hydroxyquinoline is a hydroxylated quinoline derivative with antimicrobial activity. it shows growth-inhibitory effects against intestinal bacteria. it also can be used as sacrificial scavengers of the photogenerated oxygen species.

References

[1] F. KHALLOUKI. HPLC-ESI-MS and GC-EI-MS Identification and Quantitation of Polyphenolics and Alkaloids in Moroccan Jujube Honeys[J]. Journal of Apicultural Science, 2020, 64 1: 287-299. DOI: 10.2478/jas-2020-0029
[2] STEPHAN HEEB. Quinolones: from antibiotics to autoinducers[J]. FEMS microbiology reviews, 2011, 35 2: 247-274. DOI: 10.1111/j.1574-6976.2010.00247.x
[3] MARIE-GRATIA KAYIRERE . Synthesis and antibacterial activity of new 4-alkoxy, 4-aminoalkyl and 4-alkylthioquinoline derivatives[J]. European Journal of Medicinal Chemistry, 1998, 33 1: Pages 55-63. DOI: 10.1016/s0223-5234(99)80076-2
[4] GEORGE C. RAGOS Prodromos B I Mavroudis A Demertzis. A high-sensitive spectrofluorimetric method for the determination of micromolar concentrations of iron(III) in bovine liver with 4-hydroxyquinoline[J]. Farmaco (Societa chimica italiana: 1989), 1998, 53 8: Pages 611-616. DOI: 10.1016/s0014-827x(98)00070-6

4-Hydroxyquinoline synthesis

Synthesis of 4-Hydroxyquinoline from Aniline

4-Hydroxyquinoline Preparation Products And Raw materials

Raw materials

Preparation Products

4-Chloroquinoline Disperse Yellow HG Imiquimod 4-AMINO-3-NITROQUINOLINE 3,4-DIAMINOQUINOLINE

DECAHYDRO-QUINOLIN-4-OL HYDROCHLORIDE 3-NITRO-4-QUINOLINOL 4-Chloro-3-nitroquinoline 4-Methoxyquinoline 3-Amino-4-chloroquinoline

4-Bromoquinoline 4(1H)-Quinolinone, 3-(hydroxymethyl)- Pentitol, 1,4-anhydro-2,5-dideoxy-3-S-(3-iodo-4-quinolinyl)-3-thio-

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4-Hydroxyquinoline Suppliers

Global( 486)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Yantai Fenglu Fine Chemical Co. LTD	+86-+undefined-008618315825527	kevin.wang@xhtechgroup.com	China	122	58
Shanghai Yongzeng Technology Co.,Ltd	+8613818947575	sales@yongzchem.com	China	142	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8753	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5242	58
Hefei Lbao Physical & Chemical Science Co.,Ltd	+1-5184799099	lbaochemicals@gmail.com	China	674	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13799	58
Beijing Cooperate Pharmaceutical Co.,Ltd	010-60279497	sales01@cooperate-pharm.com	CHINA	1803	55
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3009	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29831	58
NINGBO INNO PHARMCHEM CO., LTD.	13867897135	sales@nbinno.com	CHINA	923	58

Supplier	Advantage
Yantai Fenglu Fine Chemical Co. LTD	58
Shanghai Yongzeng Technology Co.,Ltd	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Hebei Chuanghai Biotechnology Co,.LTD	58
Hefei Lbao Physical & Chemical Science Co.,Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
Beijing Cooperate Pharmaceutical Co.,Ltd	55
Nanjing ChemLin Chemical Industry Co., Ltd.	60
career henan chemical co	58
NINGBO INNO PHARMCHEM CO., LTD.	58

View Lastest Price from 4-Hydroxyquinoline manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-02-15	4-Hydroxyquinoline 611-36-9	US $0.00 / kg	1kg	98%	Customise	Hefei Lbao Physical & Chemical Science Co.,Ltd
2026-02-02	4-Hydroxyquinoline 611-36-9	US $0.00 / kg	1kg	99%min	100kgs	Shanghai Yongzeng Technology Co.,Ltd
2026-01-30	4-Hydroxyquinoline 611-36-9	US $10.00-8.00 / KG	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd

4-Hydroxyquinoline
611-36-9
US $0.00 / kg
98%
Hefei Lbao Physical & Chemical Science Co.,Ltd

4-Hydroxyquinoline
611-36-9
US $0.00 / kg
99%min
Shanghai Yongzeng Technology Co.,Ltd

4-Hydroxyquinoline
611-36-9
US $10.00-8.00 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

4-Hydroxyquinoline Spectrum

4-Hydroxyquinoline(611-36-9)MS 4-Hydroxyquinoline(611-36-9)¹HNMR 4-Hydroxyquinoline(611-36-9)¹³CNMR 4-Hydroxyquinoline(611-36-9)IR1 4-Hydroxyquinoline(611-36-9)IR2 4-Hydroxyquinoline(611-36-9)Raman

611-36-9(4-Hydroxyquinoline)Related Search:

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QUINOLIN-4-OL QUINOLIN-4(1H)-ONE KYNURINE 4-hydroxy-quinolin 1H-Quinolin-4-one Quinoline, 4-hydroxy- 4-Hydroxyquinoline98% 4-Quinolinol,4-Hydroxyquinoline 4-Hydroxyquinoline, 98% 10GR 4-hydroxyquatolate 4-Quinolinol 98% 4(1H)-QUINOLINONE 4-QUINOLINOL 4-HYDROXYQUINOLINE 4-HYDROXY-1-AZANAPHTHALENE HYDROXYQUINOLINE,4- 4-Hydroxyquinoline, >=98.5% AKOS 222-32 4-Quinolinol > 4-HydroxyquinoL 4-Hydroxyquinoline ISO 9001：2015 REACH Bedaquiline Impurity 15 4-Hydroxyquinoline, 10 mM in DMSO 4-Hydroxyquinoline, 95% 4-Hydroxyquinoline-d6 2-(3-((1R,2S)-4-(dimethylamino)-2-hydroxy-2-(naphthalen-1-yl)-1-phenylbutyl)-2-methoxyquinolin-6-yl)fumaric acid 611-36-9 C9H8NO ALCOHOL Hydroxyquinolines Quinolines Building Blocks Heterocyclic Building Blocks Building Blocks C8 to C10 Chemical Synthesis Heterocyclic Building Blocks Quinoline&Isoquinoline Quinolines Hydroxyquinolines quinoline Quinolines, Quinazolines and derivatives Heterocyclic Series Alcohols and Derivatives Heterocycles