ChemicalBook > CAS DataBase List > 3-methylcyclopent-2-en-1-one

3-methylcyclopent-2-en-1-one

Product Name
3-methylcyclopent-2-en-1-one
CAS No.
2758-18-1
Chemical Name
3-methylcyclopent-2-en-1-one
Synonyms
2-Cyclopenten-1-one, 3-methyl-;3-methylcyclopent-2-enone;Methylcyclopentenone;1-Methyl-1-cyclopenten-3-one;3-METHYL-2-CYCLOPENTENE-1-ONE;3-MCP;3-Methylcyclopent-2-enon;3-METHYL-2-CYCLOPENTENONE;3-Methyl-cyclopent-2-enone;1-Methylcyclopentene-3-one
CBNumber
CB9246368
Molecular Formula
C6H8O
Formula Weight
96.13
MOL File
2758-18-1.mol
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3-methylcyclopent-2-en-1-one Property

Melting point:
3-5 °C (lit.)
Boiling point:
74 °C/15 mmHg (lit.)
Density 
0.980 g/mL at 20 °C 0.971 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.488(lit.)
FEMA 
3435 | 1-METHYL-1-CYCLOPENTEN-3-ONE
Flash point:
150 °F
storage temp. 
2-8°C
solubility 
Soluble in DMSO
form 
Liquid
color 
Clear light yellow to yellow-brown
PH
4.9 (10g/l, H2O, 20℃)
Odor
at 1.00 % in dipropylene glycol. sweet fruity fatty
Odor Type
fruity
biological source
synthetic
Water Solubility 
miscible
JECFA Number
1105
BRN 
1280476
LogP
0.54
CAS DataBase Reference
2758-18-1(CAS DataBase Reference)
NIST Chemistry Reference
2-Cyclopenten-1-one, 3-methyl-(2758-18-1)
EPA Substance Registry System
3-Methyl-2-cyclopenten-1-one (2758-18-1)
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Safety

Risk Statements 
36/38
Safety Statements 
24/25
RIDADR 
1224
WGK Germany 
3
TSCA 
Yes
PackingGroup 
III
HS Code 
29142900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H227Combustible liquid

Precautionary statements

P403+P235Store in a well-ventilated place. Keep cool.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W343502
Product name
3-Methyl-2-cyclopenten-1-one
Purity
97%, FG
Packaging
SAMPLE
Price
$59.8
Updated
2024/03/01
Sigma-Aldrich
Product number
145777
Product name
3-Methyl-2-cyclopentenone
Purity
97%
Packaging
5g
Price
$93
Updated
2024/03/01
Sigma-Aldrich
Product number
145777
Product name
3-Methyl-2-cyclopentenone
Purity
97%
Packaging
25g
Price
$707
Updated
2024/03/01
TCI Chemical
Product number
M0956
Product name
3-Methyl-2-cyclopentenone
Purity
>98.0%(GC)
Packaging
25mL
Price
$144
Updated
2024/03/01
TCI Chemical
Product number
M0956
Product name
3-Methyl-2-cyclopentenone
Purity
>98.0%(GC)
Packaging
100mL
Price
$436
Updated
2024/03/01
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3-methylcyclopent-2-en-1-one Chemical Properties,Usage,Production

Description

May be prepared by dehydrohalogenation of 2-chloro-l-methylcyclopentan-3-one.

Chemical Properties

1-Methyl-1-cyclopenten-3-one has a sweet-floral, warm-spicy and diffusive yet quite tenacious odor.

Chemical Properties

clear light yellow to yellow-brownish liquid

Occurrence

Reported found in roasted onion, cooked pork, black tea, soybean and dried bonito

Uses

It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals.

Uses

3-Methyl-2-cyclopentenone was used in the synthesis of 2-hydroxy-3-methyl-2-cyclopentenone.

Definition

ChEBI: 3-Methyl-2-cyclopenten-1-one is a cyclic ketone.

Preparation

By dehydrohalogenation of 2-chloro-1-methyl-cyclopentan-3-one.

Synthesis Reference(s)

Journal of the American Chemical Society, 101, p. 494, 1979 DOI: 10.1021/ja00496a044
The Journal of Organic Chemistry, 55, p. 371, 1990

General Description

3-Methyl-2-cyclopenten-1-one is a component of smoke flavoring.

3-methylcyclopent-2-en-1-one Preparation Products And Raw materials

Raw materials

Preparation Products

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3-methylcyclopent-2-en-1-one Suppliers

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View Lastest Price from 3-methylcyclopent-2-en-1-one manufacturers

Hebei Yanxi Chemical Co., Ltd.
Product
3-Methyl-2-cyclopenten-1-one 2758-18-1
Price
US $25.00-9.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-11-21
Hebei Chuanghai Biotechnology Co,.LTD
Product
3-Methyl-2-cyclopenten-1-one 2758-18-1
Price
US $100.00-50.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-21
JINING XINHE CHEMICAL CO., LTD
Product
3-methylcyclopent-2-en-1-one 2758-18-1
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
10ton
Release date
2024-07-17

2758-18-1, 3-methylcyclopent-2-en-1-oneRelated Search:

Acetonitrile Mesotrione Kresoxim-methyl Methanol Methyl acetate Paraquat dichloride Methylparaben N-Methyl-2-pyrrolidone 2-Cyclopenten-1-one 4-Methyl-2-pentanone Methyl acrylate Basic Violet 1 Methyl PIPERONYL METHYL KETONE METHYL-2-PYRROLIDONE Methyl bromide 2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE Pyrethrins

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  • 2-Cyclopenten-1-one, 3-methyl-
  • 3-METHYL-2-CYCLOPENTEN-1-ONE, 98+%
  • 3-Methyl-2-cyclopenten-1-one, 98%, stab. with 0.1% hydroquinone
  • 3-MCP
  • 3-Methyl-1-oxocyclopent-2-ene
  • 3-Methyl-2-cyclopenten-1-one, 98%, stabilized
  • 1-Methylcyclopentene-3-one
  • 3-Methyl-2-cyclopentenone&gt
  • -Methyl-2-cyclopenten-1-one
  • 3-Methyl-2-cyclopenten-1-one CAS NO.2758-18-1
  • 3-methylcyclopent-2-en-1-one
  • 3-Methyl-2-cyclopenten-1-one(3-MCP)
  • 3-Methyl-2-cyclopenten-1-one,with0.1%hydroquinone
  • 2758-18-1
  • CH3C5H5O
  • Building Blocks
  • C3 to C6
  • Carbonyl Compounds
  • Organic Building Blocks
  • Ketones
  • C3 to C6
  • Carbonyl Compounds
  • Ketones
  • ketone
  • Building Blocks
  • C3 to C6
  • Carbonyl Compounds
  • Chemical Synthesis
  • Organic Building Blocks
  • Pyridines