2-Methylcyclopentanone

Basic Information

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CAS Number

1120-72-5

Molecular Formula

C6H10O

Molecular Weight

98.15 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Ketones

Basic Physical Properties

Melting Point

-75°C

Boiling Point

139 °C

Refractive Index

n20/D 1.435(lit.)

SMILES

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CC1CCCC1=O

InChI

InChI=1S/C6H10O/c1-5-3-2-4-6(5)7/h5H,2-4H2,1H3

InChIKey

ZIXLDMFVRPABBX-UHFFFAOYSA-N

LogP

1.3755

Topological Polar Surface Area

17.07 Å²

Hydrogen Bond Donor/Acceptor

0 / 1

Complexity

86.2

Safety Information

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GHS Hazard Pictograms

H226

Hazard Statement

H226 Flammable liquid and vapor
Flammable liquids

Hazard Class

Class 3.2 Class 3.2

Synonyms & References

English

AM84338
Cyclopentanone, methyl-
1120-72-5
.alpha.-Methylcyclopentanone
CHEBI:195393
AI3-39196
DTXSID50862554
A904603
2-METHYLCYCLOPENTANONE (D3-METHYL)
NS00045150
NSC105429
Cyclopentanone, 2-methyl-
Z813018382
2-methyl cyclopentanone
J-002702
alpha-Methylcyclopentanone
HTH47R9TXS
2-METHYLCYCLOPENTANONE (2,5,5-D3)
SY045483
2-METHYLCYCLOPENTANONE
2-Methylcyclopentan-1-one
MFCD00001414
F9995-1299
EN300-69526
UNII-HTH47R9TXS
3-methyl-2-cyclopentanone
AKOS005259854
methyl cyclopentanone
28631-88-1
2-methyl-cyclopentan-1-one
EINECS 214-318-4

MDL Number

MFCD00001414

Customs Code

2914299000

FAQ

What are the physical and chemical properties of 2-Methylcyclopentanone (CAS: 1120-72-5)?

2-Methylcyclopentanone (CAS: 1120-72-5) is a colorless, flammable liquid with a molecular weight of 102.17 g/mol. It has a density of 0.815 g/cm³ and is slightly soluble in water but soluble in ethanol and other organic solvents. It is reactive towards strong oxidizing agents and can undergo dehydration and isomerization under certain conditions.

How is 2-Methylcyclopentanone (CAS: 1120-72-5) typically synthesized?

2-Methylcyclopentanone can be synthesized via the oxidation of 2-methylcyclopentanol using potassium permanganate or potassium dichromate. Another route involves the reaction of cyclopentanone with methyl iodide in the presence of a base such as sodium hydride.

What industries use 2-Methylcyclopentanone (CAS: 1120-72-5)?

2-Methylcyclopentanone is used in the pharmaceutical industry for the synthesis of various organic compounds, in the polymer industry for the production of plastics and resins, and in the sensor industry for gas detection applications. It is also employed in the semiconductor industry for photoresist materials.

What precautions should be taken when handling 2-Methylcyclopentanone (CAS: 1120-72-5)?

When handling 2-Methylcyclopentanone (CAS: 1120-72-5), wear appropriate personal protective equipment (PPE) including gloves, lab coat, and safety goggles. Store it in a cool, well-ventilated area away from heat and ignition sources. In case of a spill, use appropriate absorbents and ensure proper disposal. Always consult the Safety Data Sheet (SDS) for detailed handling instructions.