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3,4-Dihydro-7-hydroxy-2(1H)-quinolinone

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone structure

CAS No.: 22246-18-0

Chemical Name:: 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone

Synonyms: 7-HYDROXY-3,4-DIHYDROQUINOLIN-2(1H)-ONE;7-HYDROXY-3,4-DIHYDROCARBOSTYRIL;7-HYDROXY-3,4-DIHYDRO-2(1H)-QUINOLINONE;7-HYDROXY-3,4-DIHYDRO-1H-QUINOLIN-2-ONE;7-Hydroxy-3;AURORA KA-4813;Aripiprazole Imp.A;3,4-Dihydro-7-hydrox;7-Hydroxy carbostyril;Aripiprazole Impurity 13

CBNumber:: CB5325629

Molecular Formula:: C9H9NO2

Molecular Weight:: 163.17

MDL Number:: MFCD06410891

MOL File:: 22246-18-0.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-21 10:31:43

Product description	Number	Pack Size	Price
7-Hydroxy-3,4-dihydro-2(1H)-quinolinone 97%	675369	1g	$28.5
3,4-Dihydro-7-hydroxy-2(1H)-quinolinone >98.0%(HPLC)(N)	D3599	5g	$20
3,4-Dihydro-7-hydroxy-2(1H)-quinolinone >98.0%(HPLC)(N)	D3599	25g	$43
3,4-Dihydro-7-hydroxyquinoline-2(1H)-one	D449145	5g	$135
3,4-Dihydro-7-hydroxy-2(1H)-quinolinone	FD22021	50g	$80
More product size

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3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Properties

Melting point	233-237 °C
Boiling point	403.7±45.0 °C(Predicted)
Density	1.282±0.06 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
solubility	DMSO (Slightly), Methanol (Slightly)
pka	9.60±0.20(Predicted)
form	Solid
color	Pale Yellow
InChI	InChI=1S/C9H9NO2/c11-7-3-1-6-2-4-9(12)10-8(6)5-7/h1,3,5,11H,2,4H2,(H,10,12)
InChIKey	LKLSFDWYIBUGNT-UHFFFAOYSA-N
SMILES	N1C2=C(C=CC(O)=C2)CCC1=O
CAS DataBase Reference	22246-18-0(CAS DataBase Reference)
FDA UNII	VFU6XCR3Q3
UNSPSC Code	41116100
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302-H317

Precautionary statements

P280-P301+P312+P330-P302+P352

PPE

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Hazard Codes

Xn,Xi

Risk Statements

22-43

Safety Statements

36/37

WGK Germany

HS Code

29334900

Storage Class

11 - Combustible Solids

Hazard Classifications

Acute Tox. 4 Oral
Skin Sens. 1

NFPA 704

	1
2		0

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone price More Price(36)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	675369	7-Hydroxy-3,4-dihydro-2(1H)-quinolinone 97%	22246-18-0	1g	$28.5	2026-04-30	Buy
TCI Chemical	D3599	3,4-Dihydro-7-hydroxy-2(1H)-quinolinone >98.0%(HPLC)(N)	22246-18-0	5g	$20	2026-04-30	Buy
TCI Chemical	D3599	3,4-Dihydro-7-hydroxy-2(1H)-quinolinone >98.0%(HPLC)(N)	22246-18-0	25g	$43	2026-04-30	Buy
TRC	D449145	3,4-Dihydro-7-hydroxyquinoline-2(1H)-one	22246-18-0	5g	$135	2021-12-16	Buy
Biosynth Carbosynth	FD22021	3,4-Dihydro-7-hydroxy-2(1H)-quinolinone	22246-18-0	50g	$80	2021-12-16	Buy

Product number	Packaging	Price	Buy
675369	1g	$28.5	Buy
D3599	5g	$20	Buy
D3599	25g	$43	Buy
D449145	5g	$135	Buy
FD22021	50g	$80	Buy

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Chemical Properties,Uses,Production

Description

3,4-Dihydro-7-hydroxy-2 (1H)-quinolinone is a useful organic and pharmaceutical intermediate. It can be used as the precursor of aripiprazole1, which is an antipsychotic medication. It is also an antitumor agent and hydroxyindole analog inhibitor tyrosinase melanoma.

Chemical Properties

Pale Yellow Powder

Uses

3,4-Dihydro-7-hydroxyquinoline-2(1H)-one (Aripiprazole EP Impurity A) is an antitumor agent. Hydroxyindole analog inhibitor tyrosinase melanoma. This compound is also used in the preparation of aripiprazole (A771000).

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Preparation Products And Raw materials

Raw materials

Preparation Products

7-Methoxy-3,4-dihydro-1H-quinolin-2-one 3,4-Dihydro-7-(4-chlorobutoxy)-2(1H)-quinolinone 6-Bromo-7-ethoxy-1,2,3,4-tetrahydroquinolin-2-one 7-(Benzyloxy)-3,4-dihydrocarbostyril 7-(4-BroMobutoxy)-3,4-dihydroquinolin-2-one-d8

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Suppliers

Global( 727)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325 +8613131129325	sales1@chuanghaibio.com	China	5235	58
Hangzhou ICH Biofarm Co., Ltd	+86-0571-28186870; +undefined8613073685410	sales@ichemie.com	China	1006	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20124	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718; +8613336195806	sales@capot.com	China	29640	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13843	58
Beijing Cooperate Pharmaceutical Co.,Ltd	010-60279497	sales01@cooperate-pharm.com	CHINA	1803	55
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21590	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1803	55
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3009	60

Supplier	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	58
Hebei Chuanghai Biotechnology Co,.LTD	58
Hangzhou ICH Biofarm Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Capot Chemical Co.,Ltd.	60
Shanghai Daken Advanced Materials Co.,Ltd	58
Beijing Cooperate Pharmaceutical Co.,Ltd	55
Henan Tianfu Chemical Co.,Ltd.	55
Shanghai Time Chemicals CO., Ltd.	55
Nanjing ChemLin Chemical Industry Co., Ltd.	60

View Lastest Price from 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-04-30	3,4-Dihydro-7-hydroxy-2(1H)-quinolinone 22246-18-0	US $23.00 / kg	1kg	99%	20MT	Jinan Finer Chemical Co., Ltd
2026-04-30	3,4-Dihydro-7-hydroxy-2(1H)-quinolinone 22246-18-0	US $0.00-0.00 / Kg/Drum	1KG	98%min	1000kgs	WUHAN FORTUNA CHEMICAL CO., LTD
2026-04-20	7-Hydroxy-3,4-dihydro-2(1H)-quinolinone 22246-18-0	US $29.00 / mg		99.20%	10g	TargetMol Chemicals Inc.

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone
22246-18-0
US $23.00 / kg
99%
Jinan Finer Chemical Co., Ltd

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone
22246-18-0
US $0.00-0.00 / Kg/Drum
98%min
WUHAN FORTUNA CHEMICAL CO., LTD

7-Hydroxy-3,4-dihydro-2(1H)-quinolinone
22246-18-0
US $29.00 / mg
99.20%
TargetMol Chemicals Inc.

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone Spectrum

3,4-Dihydro-7-hydroxy-2(1H)-quinolinone(22246-18-0)MS 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone(22246-18-0)¹HNMR 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone(22246-18-0)IR1 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone(22246-18-0)IR2

22246-18-0(3,4-Dihydro-7-hydroxy-2(1H)-quinolinone)Related Search:

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7-Hydroxyquinolinone 7-(4-BROMOBUTOXY)-QUINOLINE-2(1H)-ONE Brexpiprazole Impurity 20 Brexpiprazole Impurity 5 HCl 7-(4-chlorobutoxy)-1-{4-[(2-oxo-1,2-dihydroquinolin-7-yl)oxy]butyl}-1,2-dihydroquinolin-2-one

(E)-N-(3-METHOXY-PHENYL)-3-PHENYL-ACRYLAMIDE 5-HYDROXY-2(1H)-QUINOLINONE 7,7'-(butane-1,4-diylbis(oxy))bis(quinolin-2(1H)-one)

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7-Hydroxy-3,4-dihydro-2(1H)-quinolinone Aripiprazole Dihydroquinolinone Impurity (USP) 7-Hydroxy-3,4-dihydro-2(1H)-chinolinon Intermediate of Aripiprazole Aripiprazole Impurity 13 7- hydroxy-3,4- twohydrogen -2(1H)- quinolinone 7-Hydroxy-3,4-dihydro-2(H)-quinolinone 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone SynonyMs 7-Hydroxy Carbostyril 7-Hydroxy-1,2,3,4-tetrahydro-2-chinolinon 7-HYDROXY-1,2,3,4-TETRAHYDRO-2-QUINOLINONE 7-HYDROXY-1,2,3,4-TETRAHYDROQUINOLIN-2-ONE 7-HYDROXY-1,2,3,4-TETRAHYDROQUINOLINE-2-ONE 7-HYDROXY-3,4-DIHYDRO-2-OXO-(1H)-QUINOLINE 7-HYDROXY-3,4-DIHYDRO CARBOSTYRYL 7-HYDROXY-3,4-DIHYDRO-QUINOLIN-2-ONE 8-HYDROXY-3,4-DIHYDRO-2(1H)-QUINOLINONE 3,4-DIHYDRO-7-HYDROXYCARBOSTYRIL 7-Hydroxy-2(1H)-3,4-dihydroquinolinone 7-HYDROXY-3,4-DIHYDRO-2(1H)-QUINOLINONE3,4-DIHYDRO-7-HYDROXY-2-(1H)-QUINOLINONE 3,4-Dihydro-7-Hydroxy-2(1H)-Quinlinone 7-Hydroxy-2-Oxo-3,4-Dihydroquinoline 7-Hydroxy-3,4-dihydro-2(1H)-qu 3,4-DIHYDRO-7-HYDROXY-2(1H)-QUINOLINONE /7-HQ 7-HYDROXY-3,4-DIHYDRO-2(1H)-QUINLINONE 7-HYDROXY-3,4-DIHYDRO-2(1H)QUINOLINONE//INTERMEDIATE OF ARIPIPRAZOLE AURORA KA-4813 (1H)-7-HYDROXY-3,4-DIHYDRO-2-QUINOLINONE 7-Hydroxy-3,4-dihydro-2(1H)-quinolinone 97% Aripiprazole Dihydroquinolinone Impurity 7-HYDROXY-2-OXO-3,4-DIHYDROQUINOLINE, 98% ARIPIPRZAOLE INTERMEDIATE 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone 7-Hydroxy carbostyril 7-Hydroxy-2-oxo-1,2,3,4-tetrahydroquinoline 2(1H)-Quinolinone,7-hydroxy, 3,4-dihydro- 3,4-Dihydro-7-hydroxy-1H-quinolin-2-one 7-Hydroxy-3,4-dihydro-2-quinolinone 7-Hydroxy-1,2,3,4-tetrahydro-2-quinolinone, 7-Hydroxy-3,4-dihydrocarbostyril 7-Hydroxy-3,4-dihydroquinoline-2(1H)-one 3,4-Dihydro-7-hydrox 4-dihydro-quinolin-2-one 7-Hydroxy-3 7-HYDROXY-3, 4-DIHYDRO-2(1H)-QUINLIONE 7-Hydroxy-3,4-dihydro-2(1H)-quinolinone, 97%, 7-HydroxycarbostyrilQ: What is 7-Hydroxycarbostyril Q: What is the CAS Number of 7-Hydroxycarbostyril Q: What is the storage condition of 7-Hydroxycarbostyril Q: What are the applications of 7-Hydroxycarbostyril Aripiprazole impurities1787 Aripiprazole EP Impurity A/ Aripiprazole Dihydroquinolinone Impurity 7-hydroxy-3,4-dihydro-2(lH)-quinolinone 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone ISO 9001：2015 REACH 7-HYDROXY-3,4-DIHYDROCARBOSTYRIL 22246-18-0 7-Hydroxy-3,4-dihydro-2(1H)-quinoL 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone> 3,4-Dihydro-7-hydroxy-2(1H)-quinolinon 4-Dihydro-7-hydroxy-2(1H)-quinolinone Aripiprazole EP Impurity A Aripiprazole Impurity 21（Aripiprazole EP Impurity A） Aripiprazole EP Impurity A(3,4-Dihydro-7-hydroxyquinoline-2(1H)-one) Aripiprazole intermediate Aripiprazole Imp.A