4-Pyridinesulfonic acid

Basic Information

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CAS Number

5402-20-0

Molecular Formula

C5H5NO3S

Molecular Weight

159.17 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

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

330 ºC (dec.)

Boiling Point

°Cat760mmHg

Refractive Index

1.689

SMILES

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C1=CN=CC=C1S(=O)(=O)O

InChI

InChI=1S/C5H5NO3S/c7-10(8,9)5-1-3-6-4-2-5/h1-4H,(H,7,8,9)

InChIKey

PTWLOSARXIJRRJ-UHFFFAOYSA-N

LogP

0.3283000000000002

Topological Polar Surface Area

67.25999999999999 Å²

Hydrogen Bond Donor/Acceptor

1 / 4

Complexity

187

Synonyms & References

English

SCHEMBL1416290
NSC 5082
A7853
DTXSID30902725
UNII-BS92GQS9EZ
AM100922
CS-0157388
NSC-5082
4-Pyridinesulfonicacid
SY122173
FT-0645409
4-Sulphopyridine
4-Pyridinesulfonic acid
NoName_3274
pyridine-4-sulfonic acid
NSC5082
J-524123
Pyridine-4-sulphonic acid
MFCD00234082
4-PYRIDINESULPHONIC ACID
BS92GQS9EZ
5402-20-0
PS-8788
Q27465458
AKOS015891504
Pyridine-4-sulfonic acid
VP14752
RP02076
ST2405942
AB1009781
AB0041609

MDL Number

MFCD00234082

Customs Code

2933399090

FAQ

What is 4-Pyridinesulfonic acid (CAS: 5402-20-0)?

4-Pyridinesulfonic acid (CAS: 5402-20-0) is an organic compound with the chemical formula C6H5NSO3H. It is a white or light yellow crystalline solid with a pungent odor. This compound is commonly used in various industries including pharmaceuticals, research, and chemical manufacturing.

What are the main uses of 4-Pyridinesulfonic acid (CAS: 5402-20-0)?

4-Pyridinesulfonic acid (CAS: 5402-20-0) is widely used in the pharmaceutical industry for the synthesis of drug intermediates. It is also utilized in research for catalytic applications and in the manufacturing of certain dyes and pigments. Additionally, it serves as a reagent in analytical chemistry.

Is 4-Pyridinesulfonic acid (CAS: 5402-20-0) safe?

4-Pyridinesulfonic acid (CAS: 5402-20-0) can be considered safe if handled properly. However, it is corrosive and can cause skin and eye irritation. Users should wear appropriate personal protective equipment such as gloves and goggles. It is important to follow hazardous material guidelines and avoid contact with skin and eyes.

How should 4-Pyridinesulfonic acid (CAS: 5402-20-0) be stored?

4-Pyridinesulfonic acid (CAS: 5402-20-0) should be stored in a tightly sealed container in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. The storage temperature should not exceed 30°C. It is also advisable to keep it away from incompatible materials such as strong oxidizers and bases.