4-Amino-1-naphthalenesulfonic Acid

Basic Information

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CAS Number

84-86-6

Molecular Formula

C10H9NO3S

Molecular Weight

223.25 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

≥300 °C

Boiling Point

220°C (rough estimate)

Density

1.67

Solubility

Sparingly soluble in dichloromethane. Soluble in aqueous base.

Refractive Index

1.5250 (estimate)

SMILES

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C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)O)N

InChI

InChI=1S/C10H9NO3S/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9/h1-6H,11H2,(H,12,13,14)

InChIKey

NRZRRZAVMCAKEP-UHFFFAOYSA-N

LogP

1.6687000000000003

Topological Polar Surface Area

80.39 Å²

Hydrogen Bond Donor/Acceptor

3 / 4

Complexity

322

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Hazard Class

Class 8 Class 8

Synonyms & References

English

naphthionsaure
4-Aminonaphthalene-1-sulphonic acid
8ZIK65C5CD
1-Naphthylamine-4-sulfonic acid 4-Amino-1-naphthalenesulfonic acid
.alpha.-Naphthylamine-p-sulfonic acid
4-amino-naphthalene-1-sulfonic acid
LS-94870
STK094218
Kyselina nafthionova [Czech]
90459-10-2
84-86-6
Piria's acid
Sulfonaphtin
4-amino-1-naphthalene sulfonic acid
4-Aminonaphthalene-1-sulfonic acid
EINECS 201-567-9
SCHEMBL150853
CHEMBL444041
Naphthionsaeure
Kyselina nafthionova
1-Naphthylamine-4-sulfonic acid;4-amino-1-naphthalenesulfonic acid
AKOS000119622
Kyselina 1-naftylamin-4-sulfonova [Czech]
AI3-52278
1-Amino-4-sulfonaphthalene
alpha-Naphthylamine-p-sulfonic acid
1-amino-4-naphthalenesulphonic acid
84583-80-2
A0344
NSC4155
AC-10940

MDL Number

MFCD00004027

Customs Code

29214500

FAQ

What are the physical and chemical properties of 4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6)?

4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6) is a crystalline compound with a molecular weight of approximately 208.16 g/mol. It is slightly soluble in water and more soluble in organic solvents. The compound is known for its reactivity towards acidic and basic conditions, making it useful in various analytical and industrial applications.

How is 4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6) typically synthesized?

4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6) is typically synthesized through the sulfonation of naphthalene followed by the coupling with aniline. Common catalysts include sulfuric acid, and the process involves multiple steps such as sulfonation, coupling, and purification to achieve high yield and selectivity.

What industries use 4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6)?

4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6) is utilized in various industries, including pharmaceuticals for dye synthesis, polymers for coloration, and sensors for detection. It is also used in the production of dyes, pigments, and in semiconductor manufacturing processes.

What precautions should be taken when handling 4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6)?

When handling 4-Amino-1-naphthalenesulfonic Acid (CAS: 84-86-6), it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. The compound should be handled in a well-ventilated area or a fume hood to minimize exposure. Spills should be cleaned up carefully following standard procedures, and the material safety data sheet (MSDS) should be consulted for detailed guidelines on safe handling and disposal.