ChemicalBook > CAS DataBase List > 1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE

1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE

Product Name: 1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE
CAS No.: 6402-09-1
Chemical Name: 1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE
Synonyms: COUPLER 2B;AKOS AUF2111;1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE;1-(P-NITROPHENYL)-3-METHYL-5-PYRAZOLONE;3-METHYL-1-(4-NITROPHENYL)-5-PYRAZOLONE;1-(4-Nitrophenyl)-3-methyl-5-pyrazolone>3-Methyl-1-(p-nitrophenyl)-5(4H)-pyrazolone;1-(4-Nitrophenyl)-3-methyl-5(4H)-pyrazolone;3-METHYL-1-(4-NITROPHENYL)-2-PYRAZOLIN-5-ONE;5-methyl-2-(4-nitrophenyl)-3-pyrazol-2-iumone
CBNumber: CB9455706
Molecular Formula: C10H9N3O3
Formula Weight: 219.2
MOL File: 6402-09-1.mol

Less

1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE Property

Melting point:: 220-225 °C
Boiling point:: 360°C (rough estimate)
Density: 1.3284 (rough estimate)
refractive index: 1.4830 (estimate)
storage temp.: Sealed in dry,Room Temperature
form: powder to crystal
pka: 1.56±0.50(Predicted)
color: White to Amber
CAS DataBase Reference: 6402-09-1(CAS DataBase Reference)
EPA Substance Registry System: 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)- (6402-09-1)

Less

Safety

Hazard Codes: Xn
Risk Statements: 22
HS Code: 2933.19.4300

Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H317May cause an allergic skin reaction

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: S372862
Product name: 3-METHYL-1-(4-NITROPHENYL)-2-PYRAZOLIN-5-ONE
Purity: Aldrich<sup>CPR</sup>
Packaging: 1 unit
Price: $30.7
Updated: 2025/07/31

Sigma-Aldrich

Product number: S372862
Product name: 3-METHYL-1-(4-NITROPHENYL)-2-PYRAZOLIN-5-ONE
Purity: AldrichCPR
Packaging: 250MG
Price: $29.8
Updated: 2024/03/01

TCI Chemical

Product number: M0377
Product name: 1-(4-Nitrophenyl)-3-methyl-5-pyrazolone
Purity: >98.0%(GC)(T)
Packaging: 25g
Price: $282
Updated: 2025/07/31

TCI Chemical

Product number: M0377
Product name: 1-(4-Nitrophenyl)-3-methyl-5-pyrazolone
Purity: min.98.0%
Packaging: 5G
Price: $94
Updated: 2025/07/31

Chem-Impex

Product number: 43644
Product name: 1-(4-Nitrophenyl)-3-methyl-5-pyrazolone,≥98%(GC)
Purity: ≥98%(GC)
Packaging: 25G
Price: $321.25
Updated: 2021/12/16

Less

1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE Chemical Properties,Usage,Production

Chemical Properties

yellow to brown crystalline powder

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 24, p. 149, 1987 DOI: 10.1002/jhet.5570240128

1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE Preparation Products And Raw materials

Raw materials

Preparation Products

Less

1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE Suppliers

Americas 1 China 50 Europe 1 Germany 3 India 2 Japan 2 South Korea 1 United Kingdom 4 United States 8 Global 72

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 24529
Advantage: 81

Energy Chemical

Tel: 021-021-58432009 400-005-6266
Fax: 021-58436166
Email: sales8178@energy-chemical.com
Country: China
ProdList: 44801
Advantage: 61

Shanghai Jian Chao Chemical Technology Co., Ltd.

Tel: 150-2103-5486 18017383231
Fax: qq：2817624287
Email: 983544897@qq.com
Country: China
ProdList: 9342
Advantage: 55

9ding chemical ( Shanghai) Limited

Tel: 4009209199
Fax: 86-021-52271987
Email: sales@9dingchem.com
Country: China
ProdList: 22514
Advantage: 55

Shanghai Worldyang Chemical Co.,Ltd.

Tel: 021-021-56795766
Fax: +86-21-56795266
Email: sales@worldyachem.com
Country: China
ProdList: 9476
Advantage: 58

Nanjing ERan Biological Pharmaceutical Co., Ltd.

Tel: 13770809694
Fax: +86 25 56203983
Email: googlexu_0114@sina.com
Country: China
ProdList: 990
Advantage: 58

Zhengzhou Guancheng Laboratory equipment Sales

Tel: 0371-88888888 272369594
Fax: QQ:272369594
Email: 2723695949@qq.com
Country: China
ProdList: 4958
Advantage: 50

DebyeTec.com Inc.

Tel: 18-086626237 18086626237
Fax: qq:2693528373
Email: 2693528373@qq.com
Country: China
ProdList: 2973
Advantage: 56

ShangHai Angti Biotechnology Co., Ltd.

Tel: 13764913901
Fax: -
Email: info@angtibio.com
Country: China
ProdList: 4981
Advantage: 55

Shanghai YuanYe Biotechnology Co., Ltd.

Tel: 021-61312847; 18021002903
Fax: QQ:3008007432
Email: 3008007409@qq.com
Country: China
ProdList: 71826
Advantage: 60

Shanghai Changyan Chem & Tech Co., Ltd.

Tel: 021-20242659 18930833303
Fax: +86 (21) 2024-2659
Email: Sales@changyanchem.cn
Country: China
ProdList: 5001
Advantage: 55

Amadis Chemical Company Limited

Tel: 571-89925085
Fax: 0086-571-89925065
Email: sales@amadischem.com
Country: China
ProdList: 131957
Advantage: 58

Shanghai Yihe Biological Technology Co., Ltd.

Tel: 021-68882955 17721395025
Fax: 021-68882955
Email: 2423903095@qq.com
Country: China
ProdList: 4992
Advantage: 58

Amatek Scientific Co. Ltd.

Tel: 0512-56316828
Fax: 0512-56316826
Email: info@amateksci.com
Country: China
ProdList: 28785
Advantage: 58

9ding chemical ( Shanghai) Limited

Tel: 021-021-52271985 17721149837
Fax: +86 (21) 52271987
Email: sales@9dingchem.com
Country: China
ProdList: 19800
Advantage: 60

CASNO Chem Ltd.

Tel: 86-13710190520
Fax: -
Email: sales@casnochem.com
Country: China
ProdList: 313
Advantage: 58

Aikon International Limited

Tel: 025-58851090 15955137747
Fax: (6)02557626880
Email: sales01@aikonchem.com
Country: China
ProdList: 15949
Advantage: 58

Zhengzhou Acme Chemical Co., Ltd.

Tel: 0371-63315541 13323832564
Fax: QQ:3001332135
Email: 3001332135@qq.com
Country: China
ProdList: 9972
Advantage: 58

TCI Chemicals

Tel: 021-67121386, 800-988-0390
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 5391
Advantage: 58

Nextpeptide Inc

Tel: +86-0571-81612335 +8613336028439
Email: sales@nextpeptide.com
Country: China
ProdList: 19908
Advantage: 58

Henan Weituxi Chemical Technology Co., Ltd.

Tel: 0371-63284658 18135795563
Fax: QQ:2885349392
Email: 2885349392@qq.com
Country: China
ProdList: 9992
Advantage: 58

Amel Pharmatech Corporation

Tel: 027-888-4366503
Fax: 888-502-1736
Email: sales@amelpharmatech.com
Country: China
ProdList: 5000
Advantage: 58

Henan Lien Chemical Products Co., Ltd.

Tel: 0371-63357898 15378766539
Email: 535046669@qq.com
Country: China
ProdList: 4651
Advantage: 58

Beijing Haite lesk Technology Co., Ltd

Tel: 15210893940; 15116916250
Fax: QQ: 237008221
Email: chemistryliu@163.com
Country: China
ProdList: 7327
Advantage: 58

Shanghai Safer Pharmaceutical Technology Co., Ltd.

Tel: 021-31761238
Fax: 021-31761238
Email: sales@saferph.com
Country: CHINA
ProdList: 897
Advantage: 58

Beijing Jin Ming Biotechnology Co., Ltd.

Tel: 010-60605840 15801484223;
Email: psaitong@jm-bio.com
Country: China
ProdList: 29757
Advantage: 58

Shanghai Haohong Pharmaceutical Co., Ltd.

Tel: 400-8210725 4008210725
Email: malulu@leyan.com
Country: China
ProdList: 40000
Advantage: 58

Qi Qi hang Biotechnology Co., Ltd.

Tel: 15870833005
Email: 2232044025@qq.com
Country: China
ProdList: 8206
Advantage: 58

Bide Pharmatech Ltd.

Tel: 400-6005915
Email: sales@picasso-e.com
Country: China
ProdList: 39665
Advantage: 58

Shaanxi DIDU pharmaceutical and Chemical Co., Ltd

Tel: 029-029-81120477 17792793610
Email: 1033@dideu.com
Country: China
ProdList: 9963
Advantage: 58

NINGBO JL NEW MATERIAL CO.,LTD

Tel: 0574 88552218 57488552216
Email: marketing@novanb.com
Country: China
ProdList: 1342
Advantage: 58

Shanghai Yanbang Pharmaceutical Technology Co., Ltd

Tel: 15618536883
Email: 1228181347@qq.com
Country: China
ProdList: 7951
Advantage: 58

Yantai Shengkailun Chemical Technology Co., Ltd.

Tel: 13356901049
Email: mark@sklnchem.cn
Country: China
ProdList: 9993
Advantage: 58

Shanghai Aladdin Biochemical Technology Co.,Ltd.

Tel: 400-6206333 13167063860
Email: anhua.mao@aladdin-e.com
Country: China
ProdList: 48457
Advantage: 58

Shandong benrite new chemical materials co.,ltd

Tel: 0533-2866658 15615638350
Email: sales@benritechem.com
Country: China
ProdList: 6695
Advantage: 58

Merck KGaA

Tel: 21-20338288
Email: ordercn@merckgroup.com
Country: China
ProdList: 6394
Advantage: 58

Shanghai Macklin Biochemical Co.,Ltd.

Tel: 021-50706066 15221275939
Email: shenlinxing@macklin.cn
Country: China
ProdList: 14580
Advantage: 58

Santa Cruz Biotechnology Inc

Tel: 021-60936350
Email: scbt@scbt.com
Country: China
ProdList: 6594
Advantage: 58

DAYANG CHEM (HANGZHOU) CO.,LTD

Tel: +86-88938639 +86-17705817739
Email: info@dycnchem.com
Country: China
ProdList: 53899
Advantage: 58

XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.

Tel: +8618950047208
Email: ellena@amitychem.com
Country: China
ProdList: 43416
Advantage: 58

Hangzhou MolCore BioPharmatech Co.,Ltd.

Tel: +86-057181025280; +8617767106207
Fax: 0571-85806285
Email: sales@molcore.com
Country: China
ProdList: 49734
Advantage: 58

Shanghai Hao Zhun Biological Technology Co., Ltd.

Tel: --
Fax: --
Email: info@zzsrm.com
Country: CHINA
ProdList: 6650
Advantage: 58

Beijing Yunbang Biological Technology Co., Ltd.

Tel: --
Fax: --
Email: yunbnagbio@163.com
Country: China
ProdList: 6871
Advantage: 50

Shanghai PI Chemicals Ltd.

Tel: --
Fax: --
Email: sales@pipharm.com
Country: China
ProdList: 6344
Advantage: 56

Guangzhou WeiBo Chemical Co., Ltd.

Tel: --
Fax: --
Email: weibochem@163.com
Country: China
ProdList: 6187
Advantage: 67

Advanced Technology & Industrial Co., Ltd.

Tel: --
Fax: --
Email: sales@advtechind.com
Country: China
ProdList: 6523
Advantage: 75

6402-09-1, 1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONERelated Search:

PICROLONIC ACID 1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE 1-(3'-NITROPHENYL)-3-METHYL-5-PYRAZOLONE (Z)-3-METHYL-1-(4-NITROPHENYL)-4-(((1-PROPIONYLPIPERIDIN-4-YL)METHYLAMINO)METHYLENE)-1H-PYRAZOL-5(4H)-ONE (4Z)-4-{1-[2-(1,3-BENZOTHIAZOL-2-YL)HYDRAZINO]ETHYLIDENE}-5-METHYL-2-(4-NITROPHENYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE (4Z)-4-[1-(DIMETHYLAMINO)ETHYLIDENE]-5-METHYL-2-(4-NITROPHENYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE (4Z)-5-METHYL-2-(4-NITROPHENYL)-4-{1-[(PYRIDIN-3-YLMETHYL)AMINO]ETHYLIDENE}-2,4-DIHYDRO-3H-PYRAZOL-3-ONE 3-(TERT-BUTYL)-1-(4-NITROPHENYL)-2-PYRAZOLIN-5-ONE (Z)-4-(2-((3-METHYL-1-(4-NITROPHENYL)-5-OXO-1H-PYRAZOL-4(5H)-YLIDENE)METHYLAMINO)ETHYL)-N-PHENYLPIPERAZINE-1-CARBOXAMIDE 3-(TERT-BUTYL)-1-(4-NITROPHENYL)-4-((3-PHENOXYPHENYL)METHYLENE)-2-PYRAZOLIN-5-ONE 3-(TERT-BUTYL)-1-(4-NITROPHENYL)-4-((3,4,5-TRIMETHOXYPHENYL)METHYLENE)-2-PYRAZOLIN-5-ONE 3-(TERT-BUTYL)-4-((2-HYDROXY-3,5-DIIODOPHENYL)METHYLENE)-1-(4-NITROPHENYL)-2-PYRAZOLIN-5-ONE (4Z)-4-[(DIMETHYLAMINO)METHYLENE]-2,5-BIS(4-NITROPHENYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE (4Z)-4-[(TERT-BUTYLAMINO)METHYLENE]-5-METHYL-2-(4-NITROPHENYL)-2,4-DIHYDRO-3H-PYRAZOL-3-ONE 4-((2,4-DICHLOROPHENYL)METHYLENE)-3-(TERT-BUTYL)-1-(4-NITROPHENYL)-2-PYRAZOLIN-5-ONE 3-(TERT-BUTYL)-1-(4-NITROPHENYL)-4-(2-THIENYLMETHYLENE)-2-PYRAZOLIN-5-ONE (Z)-4-((2-(4-(2-(4-CHLOROPHENYL)ACETYL)PIPERAZIN-1-YL)ETHYLAMINO)METHYLENE)-3-METHYL-1-(4-NITROPHENYL)-1H-PYRAZOL-5(4H)-ONE (Z)-3-METHYL-1-(4-NITROPHENYL)-4-((2,2,6,6-TETRAMETHYLPIPERIDIN-4-YLAMINO)METHYLENE)-1H-PYRAZOL-5(4H)-ONE

2,4-DIHYDRO-5-METHYL-2-(4-NITROPHENYL)-3H-PYRAZOL-3-ONE

1-(P-NITROPHENYL)-3-METHYL-5-PYRAZOLONE

1-(4-NITROPHENYL)-3-METHYL-5-PYRAZOLONE

AKOS AUF2111

3-METHYL-1-(4-NITROPHENYL)-5-PYRAZOLONE

COUPLER 2B

2,4-dihydro-5-methyl-2-(4-nitrophenyl)-3h-pyrazol-3-on

1-(4-Nitrophenyl)-3-methyl-1H-pyrazol-5(4H)-one

1-(4-Nitrophenyl)-3-methyl-5(4H)-pyrazolone

2-(4-Nitrophenyl)-5-methyl-2,4-dihydro-3H-pyrazole-3-one

3-Methyl-1-(p-nitrophenyl)-5(4H)-pyrazolone

2,4-Dihydro-5-methyl-2-(4-nitrophenyl)-3H-pyrazol-3-one,95%

3-methyl-1-(4-nitrophenyl)-1H-pyrazol-5(4H)-one

5-Methyl-2-(4-nitrophenyl)-1H-pyrazol-3(2H)-one

3-METHYL-1-(4-NITROPHENYL)-2-PYRAZOLIN-5-ONE

5-methyl-2-(4-nitrophenyl)-3-pyrazol-2-iumone

1-(4-Nitrophenyl)-3-methyl-5-pyrazolone&gt

5-Methyl-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one

3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)-

6402-09-1

6402-9-1