8-Hydroxyquinoline-5-sulfonic acid

Basic Information

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CAS Number

84-88-8

Molecular Formula

C9H7NO4S

Molecular Weight

225.22 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

311-313°C

Boiling Point

432

Density

1.4899 (rough estimate)

Refractive Index

1.5364 (estimate)

SMILES

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C1=CC2=C(C=CC(=C2N=C1)O)S(=O)(=O)O

InChI

InChI=1S/C9H7NO4S/c11-7-3-4-8(15(12,13)14)6-2-1-5-10-9(6)7/h1-5,11H,(H,12,13,14)

InChIKey

LGDFHDKSYGVKDC-UHFFFAOYSA-N

LogP

1.1870999999999996

Topological Polar Surface Area

87.49000000000001 Å²

Hydrogen Bond Donor/Acceptor

2 / 5

Complexity

324

Safety Information

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Hazard Class

Class 6.1(b) Class 6.1(b)

Synonyms & References

English

8-Quinolinol-5-sulfonic acid
E8Z193G3L2
BDBM50437328
5-Sulfooxine
Cambridge id 5153799
Q27277021
5-Sulfo-8-hydroxyquinoline
NSC13139
LS-142138
CCRIS 5750
8-hydroxyquinolin-5-sulfonsyre
LGDFHDKSYGVKDC-UHFFFAOYSA-
EINECS 201-570-5
Sulfoxine
W-104100
AKOS001647596
7,8-Dihydro-6H-quinolino[2,3,4-kl]acridine
F0918-1884
CHEMBL2407598
8-HYDROXY-5-QUINOLINESULFONIC ACID [MI]
Oxine-5-sulfonic acid
H0306
CCG-19815
F11277
8-Hydroxy-5-quinolinesulfonic acid
BRN 0195247
NSC 13139
8-Hydroxyquinoline-5-sulfonicacid
8-Hydroxyquinoline-5-sulfonic acid
8-Hydroxychinolin-5-sulfonsaeure
8-Hydroxyquinoline-5-sulfonate

MDL Number

MFCD00006795

Customs Code

29334990

FAQ

What are the physical and chemical properties of 8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8)?

8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8) is a crystalline compound with a molecular weight of approximately 228.15 g/mol. It has a high solubility in water and is slightly soluble in organic solvents. Chemically, it acts as a weak acid and is known for its reactivity with metal ions, particularly aluminum and copper complexes.

How is 8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8) typically synthesized?

8-Hydroxyquinoline-5-sulfonic acid is typically synthesized from 8-hydroxyquinoline through sulfonation reactions. Common methods include direct sulfonation with concentrated sulfuric acid or mixed acid catalysts. The reaction is selective and yields up to 95% of the product.

What industries use 8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8)?

8-Hydroxyquinoline-5-sulfonic acid is widely used in various industries. It is a key component in the synthesis of metal chelates, particularly for aluminum and copper complexes. It is also used in the pharmaceutical industry for its complexing properties, in the polymer industry for stabilizers, and in the semiconductor industry for its role in etching processes.

What precautions should be taken when handling 8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8)?

When handling 8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8), it is essential to use personal protective equipment (PPE) such as gloves and safety goggles. It should be stored in a cool, dry place, away from direct sunlight. In case of spill, use appropriate absorbents and dispose of waste according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed handling and safety information.