pyridin-4-ol | CAS No. 626-64-2

pyridin-4-ol

Basic Information

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CAS Number

626-64-2

Molecular Formula

C5H5NO

Molecular Weight

95.1 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

148.0 to 153.0 deg-C

Boiling Point

230-235 °C/12 mmHg

Density

1.1418 (rough estimate)

Flash Point

221 ºC

Refractive Index

1.5939 (estimate)

SMILES

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C1=CNC=CC1=O

InChI

InChI=1S/C5H5NO/c7-5-1-3-6-4-2-5/h1-4H,(H,6,7)

InChIKey

GCNTZFIIOFTKIY-UHFFFAOYSA-N

LogP

0.7871999999999999

pKa

3.2(at 20℃)

Topological Polar Surface Area

33.120000000000005 Å²

Hydrogen Bond Donor/Acceptor

1 / 2

Complexity

121

Safety Information

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GHS Hazard Pictograms

H315

H319

H335

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

Hazard Class

Class IRRITANT Class IRRITANT

Sensitiveness

prone to hygroscopy, sensitive to light

Synonyms & References

English

4-Pyridone
A8662
InChI=1/C5H5NO/c7-5-1-3-6-4-2-5/h1-4H,(H,6,7
4-Pyridol
BRN 0105800
c1201
NSC 5080
W-104968
A1E9A648-09AC-4FC9-A7AF-37534D102469
4(1H)-Pyridone
1,4-dihydropyridin-4-one
1,4-Dihydro-4-pyridinone
NSC5080
SY112252
AM20061387
pyridin-4(1H)-one
pyridin-4-ol
SB52275
626-64-2
.gamma.-Hydroxypyridine
CS-W007690
5-21-07-00152 (Beilstein Handbook Reference)
4-hydroxy-pyridine
EINECS 203-633-2
CQG
UNII-3P2MV07G53
EN300-21574
1H-pyridin-4-one
FT-0618744
4(1H)-Pyridinone
AKOS022377006

MDL Number

MFCD00040458

Customs Code

2933399090

FAQ

What is pyridin-4-ol (CAS: 626-64-2)?

Pyridin-4-ol, also known as 4-hydroxypyridine, is a heterocyclic organic compound with the chemical formula C5H5NO. It is a colorless liquid characterized by its aromatic ring structure and hydroxyl group, making it reactive and soluble in polar solvents. CAS: 626-64-2 is the standardized identifier for this compound, commonly used in chemical research and industrial applications.

What are the main uses of pyridin-4-ol (CAS: 626-64-2)?

Pyridin-4-ol (CAS: 626-64-2) is widely utilized in pharmaceuticals as a key intermediate in drug synthesis, including antifungal and antibiotic compounds. It also serves in agrochemicals, dyes, and research for organic chemistry applications. Its versatile structure makes it valuable for creating functionalized pyridine derivatives in various industries.

Is pyridin-4-ol (CAS: 626-64-2) safe?

Pyridin-4-ol (CAS: 626-64-2) is generally considered low toxicity when handled properly, but it may cause skin or eye irritation. Safety guidelines recommend using appropriate PPE, such as gloves and goggles, and avoiding inhalation. It should comply with OSHA and EPA standards for chemical handling to ensure workplace safety.

How should pyridin-4-ol (CAS: 626-64-2) be stored?

Pyridin-4-ol (CAS: 626-64-2) should be stored in a tightly sealed, dark container at 2-8°C to maintain stability. It is sensitive to moisture and air, so a cool, dry, and well-ventilated environment is essential. Avoid light exposure and ensure proper storage conditions to prevent degradation.