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4-NITROQUINOLINE N-OXIDE

4-NITROQUINOLINE N-OXIDE structure

CAS No.: 56-57-5

Chemical Name:: 4-NITROQUINOLINE N-OXIDE

Synonyms: NQO;NQNO;4-nqo;4-NDQ;4-NQNO;nitrochin;N-(4-Nitrobenz;Sigma N8141 4-NQO;Nitroquinolineoxide;TIMTEC-BB SBB006266

CBNumber:: CB1150485

Molecular Formula:: C9H6N2O3

Molecular Weight:: 190.16

MDL Number:: MFCD00006738

MOL File:: 56-57-5.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-24 12:01:10

Product description	Number	Pack Size	Price
4-Nitroquinoline N-oxide ≥98%	N8141	1g	$90.7
4-Nitroquinoline N-oxide ≥98%	N8141	5g	$581
4-Nitroquinoline N-Oxide >98.0%(HPLC)(T)	N0250	1g	$105
4-Nitroquinoline N-Oxide >98.0%(HPLC)(T)	N0250	5g	$324
4-Nitroquinoline N-oxide ≥98%	N8141	250mg	$55.6
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4-NITROQUINOLINE N-OXIDE Properties

Melting point	154-156 °C(lit.)
Boiling point	325.64°C (rough estimate)
Density	1.42
refractive index	1.5570 (estimate)
storage temp.	-20°C
solubility	acetone: clear to hazy
form	Crystalline Solid
pka	-1.83±0.10(Predicted)
color	yellow to brown
BRN	165756
Stability	Stable. Hygroscopic, light-sensitive. Incompatible with strong oxidizing agents.
InChI	InChI=1S/C9H6N2O3/c12-10-6-5-9(11(13)14)7-3-1-2-4-8(7)10/h1-6H
InChIKey	YHQDZJICGQWFHK-UHFFFAOYSA-N
SMILES	N(C1=CC=N(C2C=CC=CC=21)=O)(=O)=O
CAS DataBase Reference	56-57-5(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	X5081510EV
NCI Dictionary of Cancer Terms	4-nitroquinoline 1-oxide; 4-NQO
EPA Substance Registry System	4-Nitroquinoline 1-oxide (56-57-5)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS08

Signal word

Danger

Hazard statements

H350

Precautionary statements

P201-P308+P313

PPE

Eyeshields, Gloves, type P2 (EN 143) respirator cartridges

Hazard Codes

Risk Statements

45-68-40-20/21/22

Safety Statements

53-45-36/37-22

RIDADR

2811

WGK Germany

RTECS

VC2100000

HazardClass

6.1

PackingGroup

HS Code

29339900

Storage Class

6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications

Carc. 1B

Hazardous Substances Data

56-57-5(Hazardous Substances Data)

Toxicity

LD50 intraperitoneal in mouse: 190mg/kg

NFPA 704

	1
0		1

4-NITROQUINOLINE N-OXIDE price More Price(22)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	N8141	4-Nitroquinoline N-oxide ≥98%	56-57-5	1g	$90.7	2026-03-19	Buy
Sigma-Aldrich	N8141	4-Nitroquinoline N-oxide ≥98%	56-57-5	5g	$581	2026-03-19	Buy
TCI Chemical	N0250	4-Nitroquinoline N-Oxide >98.0%(HPLC)(T)	56-57-5	1g	$105	2026-03-19	Buy
TCI Chemical	N0250	4-Nitroquinoline N-Oxide >98.0%(HPLC)(T)	56-57-5	5g	$324	2026-03-19	Buy
Sigma-Aldrich	N8141	4-Nitroquinoline N-oxide ≥98%	56-57-5	250mg	$55.6	2026-03-19	Buy

Product number	Packaging	Price	Buy
N8141	1g	$90.7	Buy
N8141	5g	$581	Buy
N0250	1g	$105	Buy
N0250	5g	$324	Buy
N8141	250mg	$55.6	Buy

4-NITROQUINOLINE N-OXIDE Chemical Properties,Uses,Production

Chemical Properties

yellow-brown crystals or powder

Uses

4-Nitroquinoline N-Oxide is used in method for constructing animal model of oral mucosal malignancy related to Kras mutation.

Uses

4-Nitroquinoline N-oxide has been used as a model compound to study its carcinogenic effects.

Definition

ChEBI: A quinoline N-oxide carrying a nitro substituent at position 4.

General Description

Yellowish-brown plates or needles or yellow solid.

Air & Water Reactions

4-NITROQUINOLINE N-OXIDE is hygroscopic and light sensitive. Insoluble in water.

Reactivity Profile

4-NITROQUINOLINE N-OXIDE reacts with strong oxidizing agents.

Health Hazard

ACUTE/CHRONIC HAZARDS: 4-NITROQUINOLINE N-OXIDE may cause irritation. When heated to decomposition it may emit toxic fumes of carbon monoxide, carbon dioxide and nitrogen oxides.

Fire Hazard

Flash point data for 4-NITROQUINOLINE N-OXIDE are not available; however, 4-NITROQUINOLINE N-OXIDE is probably combustible.

Biochem/physiol Actions

Skin and lung tumor initiator under experimental conditions.

Safety Profile

Suspected carcinogen with experimental carcinogenic, neoplas tigenic, and tumorigenic data. Poison by intraperitoneal and subcutaneous routes. An experimental teratogen. Other experimental reproductive effects. Human mutation data reported. When heated to decomposition it emits toxic fumes of NOx.

Purification Methods

The N-oxide recrystallises from aqueous acetone as yellow needles or platelets. [Ochiai J Org Chem 18 534 1953, Seki et al. J Phys Chem 91 126 1987, Beilstein 20 III/IV 3396.]

4-NITROQUINOLINE N-OXIDE Preparation Products And Raw materials

Raw materials

Quinoline Hydrogen peroxide Trifluoroacetic acid Trifluoromethanesulfonic acid Nitric acid

Acetic acid Sulfuric acid Potassium nitrate 2,6-DI-O-METHYL-BETA-CYCLODEXTRIN

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Preparation Products

4-NITROQUINOLINE 2,4-DIBROMOQUINOLINE 4-Bromoquinoline 4-Chloro-5,6,7,8-tetrahydroquinoline

4-NITROQUINOLINE N-OXIDE Suppliers

Global( 223)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29821	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	+8613580539051	joe@yuhengpharm.com	CHINA	21142	58
TargetMol Chemicals Inc.	+1-781-999-5354; +17819995354	marketing@targetmol.com	United States	32467	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Hebei Zhanyao Biotechnology Co. Ltd	15369953316 +8615369953316	admin@zhanyaobio.com	China	2123	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	18895	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52705	58
Henan Alfa Chemical Co., Ltd	+8615838112936	sale03@alfachem.cn	China	9659	58

Supplier	Advantage
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
CONIER CHEM AND PHARMA LIMITED	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	58
TargetMol Chemicals Inc.	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Hebei Zhanyao Biotechnology Co. Ltd	58
Dideu Industries Group Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Henan Alfa Chemical Co., Ltd	58

View Lastest Price from 4-NITROQUINOLINE N-OXIDE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-04-24	4-Nitroquinoline 1-oxide 56-57-5	US $56.00 / mg		97.40%	10g	TargetMol Chemicals Inc.
2025-11-18	4-NITROQUINOLINE N-OXIDE 56-57-5	US $1.10 / g	1g	99.00%	100 Tons	Dideu Industries Group Limited
2021-10-14	4-NITROQUINOLINE N-OXIDE 56-57-5	US $10.00 / KG	1Kg/Bag	99%	20 tons	Hebei Zhanyao Biotechnology Co. Ltd

4-Nitroquinoline 1-oxide
56-57-5
US $56.00 / mg
97.40%
TargetMol Chemicals Inc.

4-NITROQUINOLINE N-OXIDE
56-57-5
US $1.10 / g
99.00%
Dideu Industries Group Limited

4-NITROQUINOLINE N-OXIDE
56-57-5
US $10.00 / KG
99%
Hebei Zhanyao Biotechnology Co. Ltd

4-NITROQUINOLINE N-OXIDE Spectrum

4-NITROQUINOLINE N-OXIDE(56-57-5)MS 4-NITROQUINOLINE N-OXIDE(56-57-5)¹HNMR 4-NITROQUINOLINE N-OXIDE(56-57-5)¹³CNMR 4-NITROQUINOLINE N-OXIDE(56-57-5)IR1 4-NITROQUINOLINE N-OXIDE(56-57-5)IR2 4-NITROQUINOLINE N-OXIDE(56-57-5)IR3

56-57-5(4-NITROQUINOLINE N-OXIDE)Related Search:

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TIMTEC-BB SBB006266 4-nitrochinolinn-oxid 4-nitrochinolinn-oxid(swedish) 4-nitro-quinolin1-oxide 4-nitroquinolineoxide 4-nqo nitrochin Quinoline, 4-nitro-, 1-oxide 4-NQNO Nitroquinolineoxide N-NITROQUINOLINE-N-OXIDE, 1000MG, NEAT NITROQUINOLINE-N-OXIDE NITROQUINOLINE-1-OXIDE 4-Nitroquinoline-N-oxide, HPLC 98% 4-NITROQUINOLINE N-OXIDE POWDER 4-NITROQUINOLINE N-OXIDE 98+% 4-NITRO-1-QUINOLINIUMOLATE 4-NITROQUINOLINE 1-OXIDE 4-NITROQUINOLINE N-OXIDE 4-NITROQUINOLINIUM-1-OLATE 4-NITROCHINOLINE-N-OXIDE N-(4-Nitrobenz 4-nitro-1-oxido-quinolin-1-ium 4-NitroquinolineN-Oxide> 4-Nitroquinoline-N-oxide, Comet assay grade 4-Nitroquinoline-1-oxide@100 μg/mL in Dichloromethane 4-NITROQUINOLINE N-OXIDE ISO 9001：2015 REACH NQNO NQO 4 Nitroquinoline 1 oxide,4Nitroquinoline 1oxide 4-Nitroquinoline N-Oxide, ≥ 98.0% 4-Nitroquinoline-N-oxide Solution in Methanol Cyclohexane Impurity 26 4-Nitroquinoline 1-oxide, 10 mM in DMSO 4-Nitroquinoline N-oxide 4-NDQ Sigma N8141 4-NQO 56-57-5 Building Blocks Heterocyclic Building Blocks Quinolines Nitroquinolines pharmacetical Nitroquinolines Quinolines