5-Hydroxy-1-naphthalenesulfonic acid

Basic Information

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CAS Number

117-59-9

Molecular Formula

C10H8O4S

Molecular Weight

224.24 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

114-124°C (dec.)

Boiling Point

228.7±29.0℃ at 760 mmHg

SMILES

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

InChI

InChI=1S/C10H8O4S/c11-9-5-1-4-8-7(9)3-2-6-10(8)15(12,13)14/h1-6,11H,(H,12,13,14)

InChIKey

YLKCHWCYYNKADS-UHFFFAOYSA-N

LogP

1.7921

Topological Polar Surface Area

74.6 Å²

Hydrogen Bond Donor/Acceptor

2 / 4

Complexity

319

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

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

5-Hydroxynaphthalene-1-sulphonic acid
5-Hydroxy-naphthalene-1-sulfonic acid
5-hydroxy-1-naphthalenesulfonic acid
AS-14387
1-Naphthol-5-Sulfonicacid
EN300-123069
117-59-9
AC-509
DTXSID0059459
FT-0608114
SB30977
A803795
SCHEMBL464971
5-hydroxynaphthalene-1-sulfonic acid
EINECS 204-199-7
1-Naphthalenesulfonic acid, 5-hydroxy-
W-108562
YLKCHWCYYNKADS-UHFFFAOYSA-N
NS00014416
F14869
AKOS000520619
SY042648
MFCD00065326
CS-0130291
1-Naphthol-5-sulfonic acid
Q63396286
5-Hydroxynaphthalene-1-sulfonic acid
L-Acid
1-Naphthol-5-sulfonic Acid
5-HYDROXYNAPHTHALENE-1-SULPHONIC ACID
1,5-Oxy acid

MDL Number

MFCD00065326

Customs Code

2908999090

FAQ

What are the physical and chemical properties of 5-Hydroxy-1-naphthalenesulfonic acid (CAS: 117-59-9)?

5-Hydroxy-1-naphthalenesulfonic acid is a crystalline compound with a molecular weight of approximately 212.21 g/mol. It has a low solubility in water, around 2.5 g/L at 20°C. Chemically, it exhibits basic properties and can react with acids to form salts. It is stable under normal conditions but may undergo hydrolysis in the presence of strong bases.

How is 5-Hydroxy-1-naphthalenesulfonic acid (CAS: 117-59-9) typically synthesized?

5-Hydroxy-1-naphthalenesulfonic acid is commonly synthesized through the sulfonation of 1-naphthol followed by oxidation of the sulfonate group. This process involves the use of a sulfonation catalyst, such as concentrated sulfuric acid, and an oxidizing agent like potassium permanganate. The yield is typically around 80-85%, with good selectivity towards the desired product.

What industries use 5-Hydroxy-1-naphthalenesulfonic acid (CAS: 117-59-9)?

5-Hydroxy-1-naphthalenesulfonic acid finds application in the pharmaceutical industry for the synthesis of certain drugs, in the sensor industry for the development of naphthalene-based sensors, and in the semiconductor industry for etching processes. It is also used in the preparation of dyes and pigments.

What precautions should be taken when handling 5-Hydroxy-1-naphthalenesulfonic acid (CAS: 117-59-9)?

Precautions when handling 5-Hydroxy-1-naphthalenesulfonic acid include the use of proper personal protective equipment (PPE) such as gloves, goggles, and a lab coat. It should be stored in a cool, dry place away from heat sources. In case of a spill, it should be cleaned up with appropriate absorbent materials, and the area should be well-ventilated. Always refer to the Safety Data Sheet (SDS) for detailed safety information.