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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 price.
  • $5 - $5673.59
  • Product name: 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
  • CAS: 89-36-1
  • MF: C10H10N2O4S
  • MW: 254.26
  • EINECS:201-901-3
  • MDL Number:MFCD00020756
  • Synonyms: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
Price29 Properties Safety Information Description
29 prices
Selected condition：
Brand
  • AHH
  • AK Scientific
  • Ambeed
  • American Custom Chemicals Corporation
  • Arctom
  • Atlantic Research Chemicals
  • Chemenu
  • Chem-Impex
  • Crysdot
  • Frontier Specialty Chemicals
  • Matrix Scientific
  • Sigma-Aldrich
  • TCI Chemical
  • TRC
Package
  • 0.500g
  • 1.00g
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  • 5.00g
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  • ManufacturerAHH
  • Product numberMT-38841
  • Product description3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 97%
  • Packaging250g
  • Price$345
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberK589
  • Product description3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
  • Packaging1g
  • Price$27
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ56544
  • Product description3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
  • Packaging5g
  • Price$40
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA386504
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonicacid 97%
  • Packaging25g
  • Price$5
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0016778
  • Product description1-(4'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 95.00%
  • Packaging100G
  • Price$2784.14
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0016778
  • Product description1-(4'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 95.00%
  • Packaging250G
  • Price$5044.43
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0016778
  • Product description1-(4'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 95.00%
  • Packaging500G
  • Price$5673.59
  • Updated2021-12-16
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  • ManufacturerArctom
  • Product numberAS029275
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonicacid 97%
  • Packaging25g
  • Price$5
  • Updated2021-12-16
  • Buy
  • ManufacturerAtlantic Research Chemicals
  • Product numberAN058660
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95
  • Packaging1g
  • Price$7.62
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN058660
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95
  • Packaging5g
  • Price$12.7
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN058660
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95
  • Packaging10g
  • Price$15.24
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN058660
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95
  • Packaging25g
  • Price$17.78
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN058660
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95
  • Packaging50g
  • Price$22.86
  • Updated2026-05-23
  • Buy
  • ManufacturerChemenu
  • Product numberCM189062
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonicacid 95+%
  • Packaging100g
  • Price$101
  • Updated2021-12-16
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  • ManufacturerChem-Impex
  • Product number43631
  • Product description3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one ≥97%(Assaybytitration)
  • Packaging25G
  • Price$49.37
  • Updated2026-05-19
  • Buy
  • ManufacturerCrysdot
  • Product numberCD44000113
  • Product description4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95+%
  • Packaging500g
  • Price$339
  • Updated2026-05-20
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-38841 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 97% 250g $345 2021-12-16 Buy
AK Scientific K589 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 1g $27 2021-12-16 Buy
AK Scientific J56544 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 5g $40 2021-12-16 Buy
Ambeed A386504 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonicacid 97% 25g $5 2021-12-16 Buy
American Custom Chemicals Corporation CHM0016778 1-(4'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 95.00% 100G $2784.14 2021-12-16 Buy
American Custom Chemicals Corporation CHM0016778 1-(4'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 95.00% 250G $5044.43 2021-12-16 Buy
American Custom Chemicals Corporation CHM0016778 1-(4'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE 95.00% 500G $5673.59 2021-12-16 Buy
Arctom AS029275 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonicacid 97% 25g $5 2021-12-16 Buy
Atlantic Research Chemicals AN058660 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95 1g $7.62 2026-05-23 Buy
Atlantic Research Chemicals AN058660 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95 5g $12.7 2026-05-23 Buy
Atlantic Research Chemicals AN058660 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95 10g $15.24 2026-05-23 Buy
Atlantic Research Chemicals AN058660 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95 25g $17.78 2026-05-23 Buy
Atlantic Research Chemicals AN058660 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95 50g $22.86 2026-05-23 Buy
Chemenu CM189062 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonicacid 95+% 100g $101 2021-12-16 Buy
Chem-Impex 43631 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one ≥97%(Assaybytitration) 25G $49.37 2026-05-19 Buy
Crysdot CD44000113 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid 95+% 500g $339 2026-05-20 Buy
Next Last

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)
EPA Substance Registry System :Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- (89-36-1)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P363 Wash contaminated clothing before reuse.

Description

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.

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Suppliers and manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd
3-Methyl-1- (4-sulfophenyl) -2-Pyrazolin-5-One
$38.00/kg
3-Methyl-1- (4-sulfophenyl) -2-Pyrazolin-5-One CAS:89-36-1
career henan chemical co
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
$1.00 /1KG
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one CAS:89-36-1
Hebei Yanxi Chemical Co., Ltd.
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
$0.00 /1kg
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one CAS:89-36-1
Shanghai Daken Advanced Materials Co.,Ltd
Henan Tianfu Chemical Co.,Ltd.
Jinan Finer Chemical Co., Ltd
Xiamen AmoyChem Co., Ltd
Shandong chuangyingchemical Co., Ltd.
CONIER CHEM AND PHARMA LIMITED
Richest Group Ltd