ChemicalBook > CAS DataBase List > 4-Hydrazinobenzenesulfonic acid

4-Hydrazinobenzenesulfonic acid

Product Name
4-Hydrazinobenzenesulfonic acid
CAS No.
98-71-5
Chemical Name
4-Hydrazinobenzenesulfonic acid
Synonyms
4-Hydrazinylbenzenesulfonic acid;PHENYLHYDRAZINE-4-SULFONIC ACID;Ai3-09050;Brn 0514779;4-Hydrazinobenzen;4-HydrazinobenzenesuL;Phenylhydrazine-4-acid;p-sulfophenylhydrazine;4-sulfophenylhydrazine;4-Sulphophenylhydrazine
CBNumber
CB1401873
Molecular Formula
C6H8N2O3S
Formula Weight
188.2
MOL File
98-71-5.mol
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4-Hydrazinobenzenesulfonic acid Property

Melting point:
285°C
Boiling point:
500°C (estimate)
Density 
1.366 (estimate)
refractive index 
1.6490 (estimate)
storage temp. 
Refrigerator, Under Inert Atmosphere
solubility 
DMSO (Slightly), Water (Slightly)
form 
solid
pka
-0.66±0.50(Predicted)
color 
Off-White to Pale Beige
Water Solubility 
It is soluble in water.
Sensitive 
Hygroscopic
Merck 
4773
InChI
InChI=1S/C6H8N2O3S/c7-8-5-1-3-6(4-2-5)12(9,10)11/h1-4,8H,7H2,(H,9,10,11)
InChIKey
IOMZCWUHFGMSEJ-UHFFFAOYSA-N
SMILES
C1(S(O)(=O)=O)=CC=C(NN)C=C1
CAS DataBase Reference
98-71-5(CAS DataBase Reference)
EPA Substance Registry System
Benzenesulfonic acid, 4-hydrazino- (98-71-5)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36/37/39-60-37
RIDADR 
2585
RTECS 
DB6900000
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29280000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

TCI Chemical
Product number
H1662
Product name
4-Hydrazinobenzenesulfonic Acid
Purity
>98.0%(HPLC)(T)
Packaging
25g
Price
$33
Updated
2025/07/31
TCI Chemical
Product number
H1662
Product name
4-Hydrazinobenzenesulfonic Acid
Purity
>98.0%(HPLC)(T)
Packaging
100g
Price
$95
Updated
2025/07/31
TCI Chemical
Product number
H1662
Product name
4-Hydrazinobenzenesulfonic Acid
Purity
>98.0%(HPLC)(T)
Packaging
500g
Price
$291
Updated
2025/07/31
Usbiological
Product number
287535
Product name
Phenylhydrazine-4-sulfonic acid
Packaging
25g
Price
$378
Updated
2021/12/16
TRC
Product number
H710120
Product name
4-Hydrazinobenzenesulfonic Acid
Packaging
500g
Price
$275
Updated
2021/12/16
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4-Hydrazinobenzenesulfonic acid Chemical Properties,Usage,Production

Chemical Properties

4-Hydrazinobenzenesulfonic acid forms white to light yellow crystalline powder. Its melting point is 286°C. It dissolves readily in boiling water but is only sparingly soluble in water at room temperature. It is also slightly soluble in ethanol and diethyl ether.

Uses

4-Hydrazinobenzenesulfonic Acid is used as an intermediate to manufacture pharmaceuticals, dyes and other organic synthesis. They have active applications in organic synthesis for agrochemicals, pharmaceuticals, photographic, heat stabilizers, polymerization catalysts, flame-retardants, blowing agents for plastics, explosives, and dyes.

Application

Hemihydrate of 4-Hydrazinobenzenesulfonic Acid is used in analytical experiments to determine trace components of mixtures. Also used in the synthesis of inhibitors of coxsackievirus B3 replication. Tartrazine (T007700) analog.

Preparation

Synthesis of 4-Hydrazinobenzenesulfonic acid: Sodium 4-aminobenzenesulfonate was used as the starting material. It was mixed with water and 30% hydrochloric acid, and the mixture was cooled to 2°C. A sodium nitrite solution was then added dropwise at 0–5°C to achieve diazotization. The resulting diazonium salt solution was transferred into a mixture of sodium hydroxide solution and sodium metabisulfite, maintaining the feed temperature at 80–85°C and the pH between 6.2 and 6.7. After the addition was complete, the reaction mixture was stirred for an additional 1.5 hours. Subsequently, zinc powder and diatomaceous earth were added. The mixture was stirred and then filtered. The filtered reaction product was finally treated with acid to afford 4-hydrazinobenzenesulfonic acid.

4-Hydrazinobenzenesulfonic acid Preparation Products And Raw materials

Raw materials

ZINC 4-Amino-benzenesulfonic acid monosodium salt Sodium bisulfite Celite

Preparation Products

resist H whitener WG for wool Tartrazine 4-(1H-PYRAZOL-1-YL)BENZENESULFONYL CHLORIDE
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View Lastest Price from 4-Hydrazinobenzenesulfonic acid manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
Product
4-Hydrazinobenzenesulfonic acid 98-71-5
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20 mt
Release date
2024-12-04
Henan Fengda Chemical Co., Ltd
Product
4-Hydrazinobenzenesulfonic acid 98-71-5
Price
US $10.00-0.80/KG
Min. Order
1KG
Purity
98%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-01-12
Honest Joy Holdings Limited
Product
Phenylhydrazine-4-sulfonic acid 98-71-5
Price
US $0.00/KG
Min. Order
1KG
Purity
98.6%
Supply Ability
100 tons
Release date
2022-02-18

98-71-5, 4-Hydrazinobenzenesulfonic acidRelated Search:

Linear alkyl benzenesulphonate CALCIUM DODECYLBENZENE SULFONATE 4-BROMOPHENYLHYDRAZINE HYDROCHLORIDE Phenylhydrazine Phenylhydrazine hydrochloride PHENOLDISULFONIC ACID Dodecylbenzenesulphonic acid ammonium dodecylbenzenesulphonate Phenylacetylene Tartrazine 5-chloro-6-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)toluene-3-sulphonic acid ACID YELLOW 76 (C.I. 18850) Acid Yellow 72 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one 1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone 4,4'-BIS[3-CARBOXY-5-OXO-1-(4-SULFOPHENYL)-2-PYRAZOLIN-4-YL]TRIMETHINE OXONOLE DIPOTASSIUM SALT Sodium 5-oxo-1-(4-sulfophenyl)-4H-pyrazole-3-carboxylate 2,5-DICHLORO-4-HYDRAZINOBENZENESULFONIC ACID

  • 4-Hydrazinobenzenesulfonic acid hydrate, 98%
  • Phenylhydrazine-p-sulfonicaci
  • p-hydrazino-benzenesulfonicaci
  • 4-Hydrazinobenzene-1-sulfonic acid
  • HydrazinobenzenesulfonicAcidHemihydrate
  • Ai3-09050
  • Benzenesulfonic acid, 4-hydrazino-
  • Benzenesulfonic acid, 4-hydrazinyl-
  • Benzenesulfonic acid, p-hydrazino-
  • Brn 0514779
  • 4-Sulphophenylhydrazine
  • Phenylhydrazine-4-acid
  • Phenylhydrazine-4-sulfonic acid (PHPA)
  • 4-Hydrazinobenzenesulfonic Acid, 97+%
  • Phenylhydrazine of sulfonic acid
  • <i>p-</i>Hydrazinobenzenesulfonic acid
  • p-Phenylhydrazinesulfonic acid
  • Sulfanilic acid, N-amino-
  • 4-HydrazinobenzenesuL
  • p-hydrazinobenzenesulfonicacid
  • p-hydrazinophenylsulfonicacid
  • p-sulfophenylhydrazine
  • 4-Hydrazinobenzene-P-Sulfonic Acid
  • 4-Hydrazinobenzenesulfonicacidhemihydrate,98%
  • 4-Hydrazinobenzeneslfonic acid
  • BENZENESULPHONICACID,PARA-HYDRAZINO-
  • PHENYLHYDRAZINE-PARA-SULPHONICACID
  • 4-Hydrazinobenzolsulfonsure
  • 4-Hydrazinylbenzenesulfonic acid
  • p-Hydrazinophenylsulfonic
  • HENYLHYDRAZINE-4-SULFONIC ACID
  • 4-Hydrazino-1-benzenesulfonic acid
  • 4-HYDRAZINOBENZENESULFONIC ACID
  • 4-HYDRAZINOBENZENESULPHONIC ACID
  • 4-HYDRAZINO-PHENYLSULFONIC ACID
  • PHENYLHYDRAZINE-4-SULFONIC ACID
  • PHENYLHYDRAZINE-P-SULFONIC ACID
  • PHENYLHYDRAZINE-4-SULPHONIC ACID
  • 4-hydrazino-benzenesulfonicaci
  • 4-sulfophenylhydrazine
  • 4-HYDRAZINOBENZENESULFONIC ACID, HEMIHYDRATE 98%
  • 4-Hydrazinobenzen
  • p-Hydrazinobenzenesulfonic acid hydrate, 98%
  • 4-Hydrazinobenzenesulfonic Acid Standard
  • 4-Hydrazinobenzenesulfonic acid ISO 9001：2015 REACH
  • 4-Hydrazinylbenzenesulfonic acid hydrate
  • p-Hydrazinobenzenesulfonic Acid Hemihydrate, ≥ 98.0%
  • 98-71-5
  • C6H8N2O3SxH2O
  • H2NNHC6H4SO3H
  • Phenylhydrazine
  • bc0001