5-Amino-1-naphthalenesulfonic acid

Basic Information

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CAS Number

84-89-9

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

1.3588 (rough estimate)

Water Solubility

Soluble in hot water.

Refractive Index

1.6500 (estimate)

SMILES

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C1=CC2=C(C=CC=C2S(=O)(=O)O)C(=C1)N

InChI

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

InChIKey

DQNAQOYOSRJXFZ-UHFFFAOYSA-N

LogP

1.6686999999999996

Topological Polar Surface Area

80.39 Å²

Hydrogen Bond Donor/Acceptor

3 / 4

Complexity

322

Safety Information

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GHS Hazard Pictograms

H312

H314

H332

Hazard Statement

H312 Harmful in contact with skin
Acute toxicity, dermal

H314 Causes severe skin burns and eye damage
Skin corrosion/irritation

H332 Harmful if inhaled
Acute toxicity, inhalation

Hazard Class

Class 8 Class 8

Synonyms & References

English

5-Aminonaphthalene-1-sulphonic acid
5-Sulfo-1-naphthylamine
1-Naphthalenesulfonic acid, 5-amino-
SCHEMBL147103
A853491
NSC7553
84-89-9
NSC28691
NSC-28691
STL481813
D88250
AC-11003
W70WC365OD
W-104099
1-Naphthylamine-5-sulfonic acid
1-Aminonaphthalene-5-sulfonic acid
LS-94871
5-Naphthylamine-1-sulfonic acid
5-Amino-1-naphthalenesulfonic acid, technical, >=90% (T)
5-AMINO-1-NAPHTHALENESULFONIC ACID
MFCD00014315
AS-17221
PD005657
1-Amino-5-naphthalenesufonic acid
1-naphthylamine-5-sulfonic acid;laurent`s acid
FT-0627716
EN300-123988
DTXSID7058911
NSC 28691
1-aminonaphthalene-5-sulphonic acid
5-Amino-1-naphthalenesulfonic acid, tech grade

MDL Number

MFCD00014315

Customs Code

2921450090

FAQ

What are the physical and chemical properties of 5-Amino-1-naphthalenesulfonic acid (CAS: 84-89-9)?

5-Amino-1-naphthalenesulfonic acid is a crystalline solid with a molecular weight of approximately 210.18 g/mol. It dissolves well in water and has low solubility in organic solvents. Chemically, it is highly reactive towards acidic and basic conditions, making it suitable for various analytical and synthetic applications.

How is 5-Amino-1-naphthalenesulfonic acid (CAS: 84-89-9) typically synthesized?

5-Amino-1-naphthalenesulfonic acid is commonly synthesized through the sulfonation of 1-naphthol followed by reduction of the sulfonic acid group. This process typically involves the use of sulfur trioxide in pyridine and subsequent reduction with sodium borohydride or hydrogen gas over a catalyst like palladium on carbon.

What industries use 5-Amino-1-naphthalenesulfonic acid (CAS: 84-89-9)?

5-Amino-1-naphthalenesulfonic acid finds applications in various industries, including the pharmaceutical sector for drug synthesis, polymer production for its coloring properties, and sensor technology for analytical purposes. It is also used in semiconductor manufacturing for etching and polishing processes.

What precautions should be taken when handling 5-Amino-1-naphthalenesulfonic acid (CAS: 84-89-9)?

When handling 5-Amino-1-naphthalenesulfonic acid, it is essential to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coats. Work should be conducted in a fume hood due to its reactivity. Spills should be cleaned up carefully, and proper safety data sheets (SDS) should be consulted for detailed instructions on disposal and emergency procedures.