1,3-Dimethyl-1H-pyrazol-5-ol

Basic Information

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CAS Number

5203-77-0

Molecular Formula

C5H8N2O

Molecular Weight

112.13 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

Physical State

White to Yellow Solid

Melting Point

113-117 ºC

Boiling Point

226 ºC

Flash Point

90 ºC

SMILES

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CC1=CC(=O)N(N1)C

InChI

InChI=1S/C5H8N2O/c1-4-3-5(8)7(2)6-4/h3,8H,1-2H3

InChIKey

RAECFQNUIFBPCT-UHFFFAOYSA-N

LogP

0.4341199999999999

Topological Polar Surface Area

38.05 Å²

Hydrogen Bond Donor/Acceptor

1 / 3

Complexity

151

Safety Information

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GHS Hazard Pictograms

H302

Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

Synonyms & References

English

5203-77-0
SCHEMBL90035
1,3-Dimethylpyrazole-5-one
AM20100282
2,5-dimethyl-2,3-dihydro-1H-pyrazol-3-one
1,3-Dimethyl-5-hydroxypyrazole
1,3-dimethylpyrazoline-5-one
1H-Pyrazol-5-ol, 1,3-dimethyl-
MFCD00129673
FT-0654144
MFCD09953250
2,5-dimethyl-1H-pyrazol-3-one
5-Hydroxy-1,3-dimethylpyrazole
DTXSID10377598
CS-W019386
11F-418S
AB00999527-01
A5326
5-hydroxy-1,3-dimethylpyrazole, AldrichCPR
2,5-Dimethyl-2H-pyrazol-3-ol
1,3-dimethyl-1,2-dihydropyrazol-5-one
3201-29-4
1,3-dimethyl-1H-pyrazol-5-ol
5-hydroxy-1,3-dimethyl-1H-pyrazole
SCHEMBL420240
SY030644
JXPVQFCUIAKFLT-UHFFFAOYSA-N
A828904
1,3-dimethyl-pyrazolin-5-one
RAECFQNUIFBPCT-UHFFFAOYSA-N
AKOS003277279

MDL Number

MFCD00129673

Customs Code

2933199090

FAQ

What is 1,3-Dimethyl-1H-pyrazol-5-ol (CAS: 5203-77-0)?

1,3-Dimethyl-1H-pyrazol-5-ol is an organic compound with the CAS number 5203-77-0. It has the chemical formula C7H9NO and is a colorless liquid with a slightly bitter taste. It is aromatic and slightly hygroscopic.

What are the main uses of 1,3-Dimethyl-1H-pyrazol-5-ol (CAS: 5203-77-0)?

1,3-Dimethyl-1H-pyrazol-5-ol is primarily used as a pharmaceutical intermediate in the synthesis of other drugs. It also finds applications in the food industry as a flavoring agent and in research as a component in various chemical reactions.

Is 1,3-Dimethyl-1H-pyrazol-5-ol (CAS: 5203-77-0) safe?

1,3-Dimethyl-1H-pyrazol-5-ol is generally considered safe for its intended uses, but precautions should be taken. It is not harmful if handled properly. However, it should be used in a well-ventilated area to avoid inhaling the vapor. Direct contact with skin or eyes should be avoided. Proper protective clothing is recommended.

How should 1,3-Dimethyl-1H-pyrazol-5-ol (CAS: 5203-77-0) be stored?

1,3-Dimethyl-1H-pyrazol-5-ol should be stored in a cool, dry place away from direct sunlight. It should be kept in a well-ventilated area and in tightly sealed containers to prevent moisture absorption. The storage temperature should not exceed 30°C. Avoid contact with heat sources and incompatible materials such as strong acids and bases.