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3-Amino-4-hydroxybenzenesulphonamide

CAS No.
98-32-8
Chemical Name:
3-Amino-4-hydroxybenzenesulphonamide
Synonyms
4-HYDROXYMETANILAMIDE;2-AMINOPHENOL-4-SULFONAMIDE;Oapsamide;2-amino-1-phenol-4-sulfonylamide;3-Amino-4-hydroxyben;Aminophenol sulfamide;Metanilamide, 4-hydroxy-;2-Aminophenol-4-sulfamide;Aminophenol-4-sulfonamide;2-Amino-4-sulfamoylphenol
CBNumber:
CB4718833
Molecular Formula:
C6H8N2O3S
Molecular Weight:
188.2
MDL Number:
MFCD00035782
MOL File:
98-32-8.mol
MSDS File:
SDS
Last updated:2026-01-13 11:14:56
Product description Number Pack Size Price
4-HYDROXYMETANILAMIDE AldrichCPR S448028 1 unit $185
4-HYDROXYMETANILAMIDE Aldrich S448028 50mg $179
2-Aminophenol-4-sulfonamide >97.0%(HPLC)(T) A1031 25g $40
2-Aminophenol-4-sulfonamide >97.0%(HPLC)(T) A1031 500g $320
2-Aminophenol-4-sulfonamide A618980 100g $195
More product size

3-Amino-4-hydroxybenzenesulphonamide Properties

Melting point 199-201°C
Boiling point 454.5±55.0 °C(Predicted)
Density 1.580±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility soluble in Methanol
form powder to crystal
pka 7+-.0.20(Predicted)
color White to Gray to Brown
CAS DataBase Reference 98-32-8(CAS DataBase Reference)
FDA UNII S18Z30538J
EPA Substance Registry System Benzenesulfonamide, 3-amino-4-hydroxy- (98-32-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
TSCA  TSCA listed
HS Code  2935.90.9500
HazardClass  IRRITANT
NFPA 704
0
2 0

3-Amino-4-hydroxybenzenesulphonamide price More Price(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich S448028 4-HYDROXYMETANILAMIDE AldrichCPR 98-32-8 1 unit $185 2025-07-31 Buy
Sigma-Aldrich S448028 4-HYDROXYMETANILAMIDE Aldrich 98-32-8 50mg $179 2024-03-01 Buy
TCI Chemical A1031 2-Aminophenol-4-sulfonamide >97.0%(HPLC)(T) 98-32-8 25g $40 2025-07-31 Buy
TCI Chemical A1031 2-Aminophenol-4-sulfonamide >97.0%(HPLC)(T) 98-32-8 500g $320 2025-07-31 Buy
TRC A618980 2-Aminophenol-4-sulfonamide 98-32-8 100g $195 2021-12-16 Buy
Product number Packaging Price Buy
S448028 1 unit $185 Buy
S448028 50mg $179 Buy
A1031 25g $40 Buy
A1031 500g $320 Buy
A618980 100g $195 Buy

3-Amino-4-hydroxybenzenesulphonamide Chemical Properties,Uses,Production

Chemical Properties

Light brown crystal

Uses

3-Amino-4-hydroxybenzenesulfonamide is a reagent used to synthesize antagonists for somatostatin receptor subtype 5 (SST5R). It also has utility in dye applications.

Production Methods

2-nitrochlorobenzene is sulfochlorinated with chlorosulfuric acid; the resulting sulfochloride is treated with ammonia to give 4-chloro-3-nitrobenzenesulfonamide; chlorine is replaced by hydroxyl by heating the product at 100 ℃ in aqueous sodium hydroxide solution. Finally, the hydroxybenzenesulfonamide is reduced with iron turnings to obtain 3-Amino-4-hydroxybenzenesulphonamide.

24855-58-1
98-32-8
Synthesis of 3-Amino-4-hydroxybenzenesulphonamide from 4-hydroxy-3-nitrobenzenesulphonamide
Global( 245)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652 info@fdachem.com China 20126 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21595 55
career henan chemical co
+86-0371-86658258 +8613203830695 sales@coreychem.com China 29830 58
Alchem Pharmtech,Inc.
8485655694 sales@alchempharmtech.com United States 63687 58
SIMAGCHEM CORP
+86-5922680277 +86-13806087780 sale@simagchem.com China 17346 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Nanjing Fred Technology Co., Ltd.
+86-02584696168 15380713688 Austin@fredchem.cn CHINA 865 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250 1026@dideu.com China 18884 58
Wuhan Fortuna Chemical Co., Ltd
+86-027-59207850 +86-13986145403; info@fortunachem.com China 6011 58
Dayang Chem (Hangzhou) Co.,Ltd.
+86-0571-88938639 +8617705817739 info@dycnchem.com China 52725 58

View Lastest Price from 3-Amino-4-hydroxybenzenesulphonamide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-Amino-4-hydroxybenzenesulphonamide pictures 2026-03-03 3-Amino-4-hydroxybenzenesulphonamide
98-32-8
US $0.00 / KG 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
3-Amino-4-hydroxybenzenesulphonamide pictures 2025-09-25 3-Amino-4-hydroxybenzenesulphonamide
98-32-8
US $100.00-1.00 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
3-Amino-4-hydroxybenzenesulphonamide pictures 2019-07-06 3-Amino-4-hydroxybenzenesulphonamide
98-32-8
US $1.00 / kg 1kg 95-99% 500KG Career Henan Chemical Co
3-amino-4-hydroxybenzenesulphonamide 3-AMINO-4-HYDROXYBENZENESULFONAMIDE 2-AMINOPHENOL-4-SULFONAMIDE 2-AMINOPHENOL-4-SULFONYL AMIDE 2-AMINOPHENOL-4-SULFOAMINE 2-Amino-1-phenol-4-sulfonylamdie 2-Aminophenlo-4-sulfonamide 2-Aminophenol-4-sulfamide 3-amino-4-hydroxy-benzenesulfonamid Aminophenol sulfamide Benzenesulfonamide, 3-amino-4-hydroxy- Metanilamide, 4-hydroxy- Metanilamide, 4-hydroxy- (8CI) 4-amino-N-(2-methoxy-6-oxo-1H-pyrimidin-5-yl)benzenesulfonamide O-AMINO PHENOL-P-SULFONAMIDE 4-HYDROXY-3-AMINOBENZENE SULFONAMIDE 4-HYDROXYMETANILAMIDE Benzenesulfonamide, 3-amino-4-hydroxy- (9CI) 2-Amino-1-hydroxybenzene-4-sulfonic acid amide 2-Aminophenol-4-sulfonic acid amide o-Aminophenol-4-sulfonic acid amide 2-AMINOPHENOL-4-SULFAMIDE (APSA) 2-AMINOPHENOL-4-SULFAMIDE (APSA)SELECT CNS APPLICATIONS 2-Amino-4-hydroxybenzenesulfonamide 3-Amino-4-hydroxybenzenesulphonamide2 3-Amino-4-hydroxybenzenesulfonamide 4-Hydroxymetanilamide 2- aMino-4-sulfonyl aMinophenol 2--4-sulfonaMideaMinophenol 2-amino-1-phenol-4-sulfonylamide Oapsamide 3-aMino-4-hydroxybenzene-1-sulfonaMide 3-Amino-4-hydroxybenzebesulfonamide 3-azanyl-4-hydroxy-benzenesulfonamide 2-Aminophenol-4-sulfonamide ,97% 2-Aminophenol-4-sulphonamide 3-Amino-4-hydroxyben 4 HYDROXY 3 AMINO BENZENE SULPHONAMIDE 3-Amino-4-hydroxybenzenesulphonamide ISO 9001:2015 REACH 3-Amino-4-hydroxybenzenesulphonamide 98-32-8 Aminophenol-4-sulfonamide 2-AMINO PHENOL-4-SULPHONAMIDE (OPSAMIDE) 3-AMINO-4-HYDROXYBENZENESULFONAMIDE/2-AMINO-PHENOL-4-SULFONAMIDE 2-Amino-4-sulfamoylphenol 2-Aminophenol-4-sulfomide 98-32-8 Intermediates of Dyes and Pigments SULFONAMIDE Benzene derivates