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ChemicalBook >> CAS DataBase List >>3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Structure
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one structure
CAS No.
89-36-1
Chemical Name:
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
Synonyms
Pyrazolic acid;PSMP;SPMP;PYRAZOLONE G;PYRAZOLINE G;4-PYRAZOLIC ACID;4-acid pyrazolone;p-Sulfopyrazolone;p-SMP (1 : 4 SPMP);p-Sulfamoylpyrazolone
CBNumber:
CB1289284
Molecular Formula:
C10H10N2O4S
Molecular Weight:
254.26
MDL Number:
MFCD00020756
MOL File:
89-36-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 23:24:22
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3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Properties

Melting point >252 °C (dec.) (lit.)
Density 1.4456 (rough estimate)
vapor pressure 0.001Pa at 20℃
refractive index 1.5650 (estimate)
storage temp. Sealed in dry,Room Temperature
pka pKa 4.90 (H2O t = 37 I = 0.15) (Uncertain)
form Powder
color White to Orange to Green
Water Solubility 5 g/L (20 ºC)
BRN 619424
InChI InChI=1S/C10H10N2O4S/c1-7-6-10(13)12(11-7)8-2-4-9(5-3-8)17(14,15)16/h2-5H,6H2,1H3,(H,14,15,16)
InChIKey CWJQQASJVVAXKL-UHFFFAOYSA-N
SMILES C1(S(O)(=O)=O)=CC=C(N2C(=O)CC(C)=N2)C=C1
LogP -2.04 at 23℃ and pH7
CAS DataBase Reference 89-36-1(CAS DataBase Reference)
FDA UNII 60DZB69URT
EPA Substance Registry System Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- (89-36-1)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
PPE Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 1759 8/PG 2
WGK Germany  1
TSCA  TSCA listed
HazardClass  8
PackingGroup  II
HS Code  29331990
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Skin Corr. 1B
REACH Registrations Active
NFPA 704
0
3 0

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one price More Price(34)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 134163 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone 89-36-1 25g $67.4 2026-04-30 Buy
TCI Chemical M0090 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one >97.0%(T) 89-36-1 25g $65 2026-04-30 Buy
TRC TRC-M227285-5G 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 89-36-1 5g $64 2026-06-03 Buy
TRC TRC-M227285-50G 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 89-36-1 50g $122 2026-06-03 Buy
TRC TRC-M227285-25G 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 89-36-1 25g $84 2026-06-03 Buy
Product number Packaging Price Buy
134163 25g $67.4 Buy
M0090 25g $65 Buy
TRC-M227285-5G 5g $64 Buy
TRC-M227285-50G 50g $122 Buy
TRC-M227285-25G 25g $84 Buy

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Chemical Properties, Uses, Production

Uses

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one acts as a reagent for the identification of sulfonic acids as efficient ecto-5'-nucleotidase inhibitors. Ecto-5'-nucleotidase inhibition is thought to provide an attractive approach to cancer therapy.

Chemical Properties

BEIGE POWDER

Uses

1-(4-Sulfophenyl)-3-methyl-5-pyrazolone (4-(3-methyl-5-oxo-2-pyrazolin-1-yl) benzoic acid) was used for pre-column derivatization of carbohydrates. It was also used as derivatization reagent in determination of oligosides, mannose and galactose obtained by degradation of galactomannans.

Definition

ChEBI: 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid is an organosulfur compound and a sulfonic acid derivative.

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Preparation Products And Raw materials

Raw materials

Preparation Products

Acid orange 63 DIRECT ORANGE 1 AZOSOL FAST ORANGE RA MORDANT BROWN 15 trihydrogen bis[4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonato(3-)]chromate(3-)
Reactive yellow 16 C.I. Direct Orange 31 Acid yellow 11 Reactive Yellow 17 sodium p-[4,5-dihydro-4-[(2-hydroxy-5-methyl-3-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonate
Reactive Yellow 15 disodium p-[4,5-dihydro-4-[[2-methoxy-5-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonate disodium [2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2-)][2-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulphophenyl)-1H-pyrazol-4-yl]azo]benzoato(3-)]chromate(2-) Acid Brown 98 disodium (3Z)-5-methyl-3-[[2-methyl-4-[3-methyl-4-[[3-methyl-5-oxo-1-(4-sulfonatophenyl)-4H-pyrazol-4-yl]diazenyl]phenyl]phenyl]hydrazinylidene]-6-oxo-cyclohexa-1,4-diene-1-carboxylate
Acid yellow 76 Mordant Orange 3 4-[4,5-Dihydro-3-methyl-4-[(4-methylphenyl)azo]-5-oxo-1H-pyrazol-1-yl]benzenesulfonic acid sodium salt Acid yellow 25 Mordant Yellow 8

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3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Suppliers

Global Suppliers ( 329)
Supplier Tel Email Country ProdList Advantage
Hubei Yunmei Technology Co., Ltd 59206672 18327059871 service@yunmeichem.com China 4916 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shanghai Longsheng chemical Co.,Ltd. 58099637 13585536065 sales@shlschem.com China 9880 59
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
XiaoGan ShenYuan ChemPharm co,ltd 15527621225; 15527621225 1791901229@qq.com China 6742 52
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11674 57
Supplier Advantage
Hubei Yunmei Technology Co., Ltd 58
J & K SCIENTIFIC LTD. 76
3B Pharmachem (Wuhan) International Co.,Ltd. 69
TCI (Shanghai) Development Co., Ltd. 81
Energy Chemical 61
Shanghai Longsheng chemical Co.,Ltd. 59
Shanghai Hanhong Scientific Co.,Ltd. 64
XiaoGan ShenYuan ChemPharm co,ltd 52
Syntechem Co.,Ltd 57
Sichuan Kulinan Technology Co., Ltd 57

View Latest Price from 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one pictures 2025-06-20 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
89-36-1
 1kg 98.00% 20tons Hebei Yanxi Chemical Co., Ltd.
3-Methyl-1- (4-sulfophenyl) -2-Pyrazolin-5-One pictures 2025-05-23 3-Methyl-1- (4-sulfophenyl) -2-Pyrazolin-5-One
89-36-1
 $38.00-79.00 1kg 99% 20ton Hebei Zhuanglai Chemical Trading Co Ltd
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one pictures 2021-08-12 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
89-36-1
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one Spectrum

3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one(89-36-1)MS3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one(89-36-1)1HNMR3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one(89-36-1)13CNMR3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one(89-36-1)IR13-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one(89-36-1)IR2

89-36-1 (3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one) Related Search:

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3-METHYL-1-(P-SULFOPHENYL)-2-PYRAZOLIN-5-ONE 98% 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one, 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid 1-(4-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 1-(4-SULPHOPHENYL)-3-METHYL-5-PYRAZOLONE 3-Methyl-1-(4-sulfonphenyl)-5-pyrazolone 1-(P-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 1-(4-Sulfonphenyl)-3-methyl-5-pyrazolone 3-METHYL-1-(P-SULFOPHENYL)-2-PYRAZOLIN-5-ONE 3-METHYL-1-P-SULFOPHENYL-5-PYRAZOLONE 3-METHYL-1-(4-SULFOPHENYL)-2-PYRAZOLIN-5-ONE 3-METHYL-1-(4'-SULFOPHENYL)-5-PYRAZOLONE 3-METHYL-1-(SULFOPHENYL)-2-PYRAZOLIN-5-ON 4-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-benzenesulfonic acid 4-(3-METHYL-5-OXO-2-PYRAZOLIN-1-YL)BENZENESULFONIC ACID 4-PYRAZOLIC ACID PHENYLMETHYLPYRAZOLE-4-ACID P-SULFOMETHYL PHENYL PYRAZOLONE PYRAZOLONE G PYRAZOLINE G P-(3-METHYL-5-OXO-2-PYRAZOLIN-1-YL)BENZENESULFONIC ACID 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazole-1-yl)benzenesulfonic acid 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one,98%,pract. 4-acid pyrazolone Benzenesulfonicacid,4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- METHYLPHENYLPYRAZOLONE-4-SULFONIC ACID 1-(4'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 4-(4,5-dihydro-3-methyl-5-oxo-1h-pyrazol-1-yl)-benzenesulfonicaci Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI) 4-(5-keto-3-methyl-4H-pyrazol-1-yl)benzenesulfonic acid 1,4 SULPHO PHENYL 3 METHYL 5 PYRAZOLENE(1,4 SULPHO PHENYL 3 METHYL 5 PYRAZOLONE(SPMP)) -Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 1-(4-Sulfophenyl)-3-methyl-5-pyrazolon 4-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzolsulfonsure 3-METHYL-1-(4-SULFOPHENYL)-2-PYRAZOLIN-5-ON 97+% 4-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid 1-(4'-sulphenyl)-3-methyl-5-pyrazolone(PSMP) 1-(4'-sulf acid phenyl)-3-methyl-5-pyrazolone 4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid p-SMP (1 : 4 SPMP) PSMP SPMP 1-(4-Sulfophenyl)-3-methyl-5-p 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one> 1 - (4-sulfonic acid phenyl) - 3-methyl-5-pyrazolone p-Sulfamoylpyrazolone 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone(4SPMP) 1- (4-sulfonylphenyl) -3-methyl-5-pyrazolone Pyrazolic acid p-Sulfopyrazolone 89-36-1 C10H9N2O4S Pyrazoles Intermediates of Dyes and Pigments Building Blocks C10