8-Amino-1-naphthalenesulfonic acid

Basic Information

View in Editor

CAS Number

82-75-7

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

Physical State

Powder

Melting Point

>350 ºC

Boiling Point

220°C (rough estimate)

Density

1.3588 (rough estimate)

Refractive Index

1.6500 (estimate)

SMILES

View in Editor

C1=CC2=C(C(=C1)N)C(=CC=C2)S(=O)(=O)O

InChI

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

InChIKey

CYJJLCDCWVZEDZ-UHFFFAOYSA-N

LogP

1.6687000000000003

Topological Polar Surface Area

80.39 Å²

Hydrogen Bond Donor/Acceptor

3 / 4

Complexity

322

Safety Information

View Safety Information

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

Sensitiveness

Sensitive to air

Synonyms & References

English

1-Naphthalenesulfonic acid, 8-amino-
LS-188090
EN300-18397
A840429
Naphthylaminemonosulfonic acid S
8-aminonaphthalene-1-sulfonic acid
UNII-0D93Y3MXV4
1-Aminonaphthalene-8-sulfonic acid
NCGC00339200-01
W-104161
1-Amino-8-naphthalene sulfonate
SR-01000198133-1
8-AMINO-1-NAPHTHALENESULFONIC ACID
SCHEMBL179823
BBL034692
peri Acid
AB01331397-02
1-Amino-8-naphthalenesulfonic acid
F0348-4039
A0350
MFCD00035730
0D93Y3MXV4
NSC7798
FT-0621493
STL428863
.alpha.-Naphthylamine-8-sulfonic acid
Z57188273
Q27236642
8-Aminonaphthalene-1-sulphonic acid
FD10527
CCRIS 8906

MDL Number

MFCD00035730

Customs Code

2921450090

FAQ

What is 8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7)?

8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7) is an organic compound with the chemical formula C10H11NO4S. It is a white crystalline solid, known for its acidic properties due to the sulfonic group. Commonly used as a precursor in the synthesis of dyes, pharmaceuticals, and other chemical compounds, it exhibits solubility in water and organic solvents. Its structure combines an amino group with a naphthalene ring and sulfonic acid functional group, making it valuable in various industrial and research applications.

What are the main uses of 8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7)?

8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7) is primarily used in pharmaceuticals as an intermediate for sulfonamide drugs. In the dye industry, it serves as a key component in producing azo dyes and pigments. It also finds applications in research for developing new chemical compounds and in specialty chemicals for functionalized materials. Its versatility in chemical synthesis makes it relevant across multiple sectors, including agriculture and polymer science.

Is 8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7) safe?

8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7) is generally considered safe when handled properly. However, it may cause skin and eye irritation, so protective measures like gloves and safety goggles are recommended. Inhalation of dust or fumes should be avoided, and adequate ventilation is necessary. Safety standards such as OSHA and EPA guidelines emphasize proper disposal and adherence to chemical handling protocols to ensure minimal risk in industrial and laboratory settings.

How should 8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7) be stored?

8-Amino-1-naphthalenesulfonic acid (CAS: 82-75-7) should be stored in a cool, dry, and dark environment to maintain stability. It is hygroscopic, requiring sealed containers to prevent moisture absorption. Storage below 25°C is recommended, and exposure to air or light should be minimized. Keep away from incompatible materials and ensure proper labeling to comply with chemical storage safety standards.