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.)
FEMA 
3435 | 1-METHYL-1-CYCLOPENTEN-3-ONE
refractive index 
n20/D 1.488(lit.)
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
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

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
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PharmaBlock Sciences (Nanjing),Inc.
Tel
400-0255188 4000255188
Fax
86-025-86918232
Email
sales@pharmablock.com
Country
China
ProdList
5268
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Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
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Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
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TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
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Energy Chemical
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021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
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Beijing Ouhe Technology Co., Ltd
Tel
010-82967028 13552068683
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
12426
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Accela ChemBio Co.,Ltd.
Tel
021-50795510 4000665055
Fax
021-50795055
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sales@accelachem.com
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China
ProdList
11660
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Nanjing Chemlin Chemical Co., Ltd
Tel
025-83697070
Fax
+86-25-83453306
Email
info@chemlin.com.cn
Country
China
ProdList
17938
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64
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Country
China
ProdList
42982
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64
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View Lastest Price from 3-methylcyclopent-2-en-1-one manufacturers

Ouhuang Engineering Materials (Hubei) Co., Ltd
Product
3-Methyl-2-cyclopenten-1-one 2758-18-1
Price
US $10.00/kg
Min. Order
1kg
Purity
99.6%
Supply Ability
100000
Release date
2024-04-24
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 Guanlang 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
2023-08-07

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