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5-Hydroxy-2(1H)-quinolinone

5-Hydroxy-2(1H)-quinolinone structure

CAS No.: 31570-97-5

Chemical Name:: 5-Hydroxy-2(1H)-quinolinone

Synonyms: 5-Hydroxyquinolin-2(1H)-one;5-Hydroxycarbostyril;NSC 134652;Carteolol Impurity 11;5-Hydroxy-2(1H)-quinolone;Brexpiprazole Impurity 27;5-HYDROXY-2(1H)-QUINILINONE;5-Hydroxy-1H-quinolin-2-one;5-Hydroxy-2(1H)-quinolinone;(2(1H)-Quinolinone,5-hydroxy-)

CBNumber:: CB3403886

Molecular Formula:: C9H7NO2

Molecular Weight:: 161.16

MDL Number:: MFCD02181132

MOL File:: 31570-97-5.mol

MSDS File:: SDS

Last updated:2026-09-12 18:52:01

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5-Hydroxy-2(1H)-quinolinone Properties

Melting point	>300°C
Boiling point	402.4±45.0 °C(Predicted)
Density	1.337±0.06 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
solubility	DMSO (Slightly), Methanol (Slightly)
form	Solid
pka	8.65±0.20(Predicted)
color	Off-White
InChI	InChI=1S/C9H7NO2/c11-8-3-1-2-7-6(8)4-5-9(12)10-7/h1-5,11H,(H,10,12)
InChIKey	XOXGLLQTNQBDKL-UHFFFAOYSA-N
SMILES	N1C2=C(C(O)=CC=C2)C=CC1=O

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302+H312+H332-H315-H319-H335
Precautionary statements	P280-P271
Hazard Codes	Xi
HazardClass	IRRITANT
HS Code	2933499090

5-Hydroxy-2(1H)-quinolinone price More Price(40)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	TRC-H953325-500MG	5-Hydroxyquinolin-2(1H)-one	31570-97-5	500mg	$460	2026-06-03	Buy
Biosynth	FH24497	5-Hydroxyquinolin-2(1H)-one	31570-97-5	50mg	$900	2026-06-04	Buy
Biosynth	FH24497	5-Hydroxyquinolin-2(1H)-one	31570-97-5	500mg	$900	2026-06-04	Buy
Biosynth	FH24497	5-Hydroxyquinolin-2(1H)-one	31570-97-5	250mg	$900	2026-06-04	Buy
Biosynth	FH24497	5-Hydroxyquinolin-2(1H)-one	31570-97-5	100mg	$900	2026-06-04	Buy

Product number	Packaging	Price	Buy
TRC-H953325-500MG	500mg	$460	Buy
FH24497	50mg	$900	Buy
FH24497	500mg	$900	Buy
FH24497	250mg	$900	Buy
FH24497	100mg	$900	Buy

5-Hydroxy-2(1H)-quinolinone Chemical Properties, Uses, Production

Chemical Properties

Off-white Solid

Uses

5-Hydroxyquinolin-2(1H)-one (cas# 31570-97-5) is a compound useful in organic synthesis.

Definition

ChEBI: 5-hydroxyquinolin-2(1H)-one is a quinolone and a monohydroxyquinoline.

5-Hydroxy-2(1H)-quinolinone synthesis

Synthesis of 5-Hydroxy-2(1H)-quinolinone from 1,2,5,6,7,8-Hexahydroquinoline-2,5-dione

5-Hydroxy-2(1H)-quinolinone Preparation Products And Raw materials

Raw materials

5-Acetyl-6-[(E)-2-(dimethylamino)ethenyl]-2(1H)-pyridinone 4,6,7,8-Tetrahydro-1H,3H-quinoline-2,5-dione 1,2,5,6,7,8-Hexahydroquinoline-2,5-dione 5-Hydroxy-3,4-dihydroquinolin-2(1H)-one

Preparation Products

5-Hydroxy-2(1H)-quinolinone Suppliers

Global Suppliers ( 120)

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai Xiang Xin Industrial Co., Ltd.	021-50211651 13651607026;	sales@xxgmpharm.com	China	499	58
Chengdu Aofan Pharmtech Co.,Ltd	15281070185; 13038283958	2865097598@qq.com	China	111	55
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
Wuhan Chemwish Technology Co., Ltd	86-027-67849912	sales@chemwish.com	China	35884	56
Adamas Reagent, Ltd.	400-6009262 15618770481	yhx@titansci.com	China	14098	59
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32273	50
Daicel Chiral Technologies (China)CO.,LTD	021-50460086-9 15921403865	han_yajun@dctc.daicel.com	China	7909	65
Tongchuang Pharma(Suzhou). Co., Ltd.	0512-63263366 18912765016	tongtf110@sina.com	China	984	62
Shanghai Aladdin Bio-Chem Technology Co.,LTD	400-6206333 13167063860	anhua.mao@aladdin-e.com	China	29985	65

Supplier	Advantage
Shanghai Xiang Xin Industrial Co., Ltd.	58
Chengdu Aofan Pharmtech Co.,Ltd	55
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Wuhan Chemwish Technology Co., Ltd	56
Adamas Reagent, Ltd.	59
Chemsky（shanghai）International Co.,Ltd.	50
Daicel Chiral Technologies (China)CO.,LTD	65
Tongchuang Pharma(Suzhou). Co., Ltd.	62
Shanghai Aladdin Bio-Chem Technology Co.,LTD	65

View Latest Price from 5-Hydroxy-2(1H)-quinolinone manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-12-16	Carteolol Impurity 31570-97-5		10mg	95%+	10000	Moxin Chemicals
2024-07-21	5-HYDROXY-2(1H)-QUINOLINONE 31570-97-5	$1.00	1Kg	98%	20T	Shaanxi Dideu Medichem Co. Ltd
2020-01-03	5-HYDROXY-2(1H)-QUINOLINONE 31570-97-5	$1.00	1KG	99%	1kg-1000kg	Career Henan Chemical Co

Carteolol Impurity
31570-97-5
95%+
Moxin Chemicals

5-HYDROXY-2(1H)-QUINOLINONE
31570-97-5
$1.00
98%
Shaanxi Dideu Medichem Co. Ltd

5-HYDROXY-2(1H)-QUINOLINONE
31570-97-5
$1.00
99%
Career Henan Chemical Co

5-Hydroxy-2(1H)-quinolinone Spectrum

5-HYDROXY-2(1H)-QUINOLINONE(31570-97-5)¹HNMR

31570-97-5 (5-Hydroxy-2(1H)-quinolinone) Related Search:

4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butan-1-ol 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Brexpiprazole Impurity 20 Brexpiprazole Impurity 36 Thianaphthene

Brexpiprazole Impurity 5 HCl Brexpiprazole Impurity 2 7-(4-chlorobutoxy)-1-{4-[(2-oxo-1,2-dihydroquinolin-7-yl)oxy]butyl}-1,2-dihydroquinolin-2-one Brexpiprazole Impurity 7 Brexpiprazole Impurity 18

Brexpiprazole Impurity 24 Brexpiprazole Impurity 22 Brexpiprazole Impurity 21 8-(benzo[b]thiophen-4-yl)-5,8-diazaspiro[4.5]decan-5-ium chloride 4-Bromobenzo[b]thiophene

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1of4

5-Hydroxy-1H-quinolin-2-one 5-HYDROXY-2(1H)-QUINILINONE 1,2-Dihydro-5-hydroxy-2-oxoquinoline 5-hydroxy-1,2-dihydroquinolin-2-one 5-Hydroxy-2(1H)-quinolone NSC 134652 (2(1H)-Quinolinone,5-hydroxy-) Brexpiprazole Impurity 27 Brexpiprazole Impurity 17, 5-Hydroxyquinolin-2(1H)-one 5-Hydroxyquinolin-2(1H)-one 99% 1,2Chemicalbook-Dihydro-5-hydroxy-2-oxoquinoline Brexpiprazole Impurity 3 5-Hydroxy-2(1H)-quinolinone Carteolol Impurity 11 5-Hydroxyquinolin-2(1H)-one 5-Hydroxycarbostyril 5-Hydroxy-2(1H)-quinolinone 31570-97-5 Aromatics Heterocycles pharmacetical