4-Hydrazinobenzenesulfonic acid

Basic Information

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CAS Number

98-71-5

Molecular Formula

C6H8N2O3S

Molecular Weight

188.21 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

286°C

Boiling Point

500°C (estimate)

Density

1.366 (estimate)

Water Solubility

It is soluble in water.

Refractive Index

1.6490 (estimate)

SMILES

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C1=CC(=CC=C1NN)S(=O)(=O)O

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

LogP

0.21890000000000004

Topological Polar Surface Area

92.42 Å²

Hydrogen Bond Donor/Acceptor

4 / 5

Complexity

226

Safety Information

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Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Sensitiveness

Hygroscopic

Synonyms & References

English

AI3-09050
CS-W016811
UNII-F3J225IK1D
p-Hydrazinobenzenesulfonic acid
A845897
p-sulfophenyl hydrazine
H0176
4-Hydrazinobenzenesulfonic acid
Sulfanilic acid, N-amino-
854689-07-9
PHENYLHYDRAZINE-P-SULFOMNIC ACID
p-Phenylhydrazinesulfonic acid
EINECS 202-694-2
AB00087113-03
F3J225IK1D
BP-30245
Phenylhydrazine-p-sulfonic acid
Benzenesulfonic acid, 4-hydrazino-
NCGC00325751-01
p-Sulfophenylhydrazine
NSC-1608
98-71-5
Benzenesulfonic acid, p-hydrazino-
Phenylhydrazinesulfonic acid
AKOS001590303
3-15-00-00865 (Beilstein Handbook Reference)
CHEMBL510966
p-hydrazino-benzenesulfonic acid
AC-18236
MFCD00025097
W-100068

MDL Number

MFCD00460768

Customs Code

2928000090

FAQ

What are the physical and chemical properties of 4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5)?

4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5) is a crystalline solid with a molecular weight of approximately 213.14 g/mol. It has a solubility of about 1 g/L in water. This compound is known for its reducing properties and acts as a weak acid. It is highly reactive in acidic media and can undergo substitution reactions.

How is 4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5) typically synthesized?

4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5) is typically synthesized by the reaction of benzenesulfonic acid with hydrazine hydrate. The reaction is carried out in an aqueous medium and involves the nucleophilic substitution of the sulfonic acid group by the hydrazine moiety. Commonly, concentrated sulfuric acid is used as a catalyst to increase the reaction rate and yield.

What industries use 4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5)?

4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5) is utilized in the pharmaceutical industry for the synthesis of certain medications. It is also used in the chemical industry for the production of dyes and in the textile industry for dyeing and printing. Additionally, it has applications in analytical chemistry as a reagent in spectroscopic and chromatographic analyses.

What precautions should be taken when handling 4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5)?

When handling 4-Hydrazinobenzenesulfonic acid (CAS: 98-71-5), it is crucial to wear appropriate personal protective equipment (PPE) including gloves, safety goggles, and a lab coat. Work should be conducted in a well-ventilated area or a fume hood to minimize exposure. Spills should be cleaned up using appropriate absorbent materials, and the area should be flushed with water. Always consult the Safety Data Sheet (SDS) for detailed safety information and emergency procedures.