ChemicalBook > CAS DataBase List > 5-METHYL-2-HEPTEN-4-ONE

5-METHYL-2-HEPTEN-4-ONE

Product Name
5-METHYL-2-HEPTEN-4-ONE
CAS No.
81925-81-7
Chemical Name
5-METHYL-2-HEPTEN-4-ONE
Synonyms
FILBERTONE;FEMA 3761;Hazelnut ketone;filbert heptenone;5-METHYL-2-HEPT-4-ONE;5-methyl-2-hepten-4-on;5-METHYL-2-HEPTEN-4-ONE;5-Methylhept-2-en-4-one;2-hepten-4-one,5-methyl-;5-Methyl-2-hepten-4-one,99%
CBNumber
CB0156208
Molecular Formula
C8H14O
Formula Weight
126.2
MOL File
81925-81-7.mol
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5-METHYL-2-HEPTEN-4-ONE Property

Melting point:
-66.9°C (estimate)
Boiling point:
170 °C(lit.)
Density 
0.845 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.444(lit.)
FEMA 
3761 | 5-METHYL-2-HEPTEN-4-ONE
Flash point:
126 °F
Odor
at 1.00 % in dipropylene glycol. raw nut skin myrcene ketonic sweet hazelnut filbert
Odor Type
nutty
JECFA Number
1133
LogP
1.97
CAS DataBase Reference
81925-81-7(CAS DataBase Reference)
EPA Substance Registry System
2-Hepten-4-one, 5-methyl- (81925-81-7)
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Safety

Risk Statements 
10
Safety Statements 
16
RIDADR 
UN 1993 3/PG 1
WGK Germany 
3
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W376109
Product name
5-Methyl-2-hepten-4-one solution
Purity
natural, 10?wt. % in ethanol, FG
Packaging
25g
Price
$169
Updated
2024/03/01
Sigma-Aldrich
Product number
W376109
Product name
5-Methyl-2-hepten-4-one solution
Purity
natural, 10?wt. % in ethanol, FG
Packaging
100g
Price
$458
Updated
2024/03/01
Sigma-Aldrich
Product number
W376108
Product name
5-Methyl-2-hepten-4-one, predominantly trans
Purity
98%, FG
Packaging
sample-k
Price
$54.6
Updated
2024/03/01
Sigma-Aldrich
Product number
W376108
Product name
5-Methyl-2-hepten-4-one, predominantly trans
Purity
98%,FG
Packaging
100g
Price
$535
Updated
2024/03/01
Sigma-Aldrich
Product number
W376108
Product name
5-Methyl-2-hepten-4-one, predominantly trans
Purity
98%,FG
Packaging
1kg
Price
$2760
Updated
2024/03/01
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5-METHYL-2-HEPTEN-4-ONE Chemical Properties,Usage,Production

Description

5-Methyl-2-hepten-4-one has a hazelnut, metallic, buttery odor and a hazelnut, buttery, mushroom taste.

Chemical Properties

5-Methyl-2-hepten-4-one has a hazelnut, metallic, buttery odor and a hazelnut, buttery, mushroom taste.

Chemical Properties

(2E)-5-Methyl-2-hepten-4-one has a fruity, hazelnut, and green odor reminding of dried fruits and a characteristic, nutty, roasted, and nougat-like hazelnut flavor. It was identified as the character compound of natural hazelnut flavor. Preparation is possible, for example, by Grignard reaction of 2-butyl magnesium chloride with crotonaldehyde and subsequent oxidation or by reaction of 2-methylbutanoyl chloride with propene.
The material is used in fragrances as top-note booster in exotic fruit and citrus notes and in nut, cocoa, coffee, and so on, flavors.

Occurrence

Reported found in roasted hazelnuts and roasted filberts.

Aroma threshold values

Aroma characteristics at 1.0%: sweet roasted hazelnuts, rich nutty with a roasted nut skin.

Taste threshold values

Taste characteristics at 5 ppm: nutty, roasted, coffee, cocoa, brown with an earthy brown and meaty nuance, sugar fondant, delicate, hazelnut, with macadamia and pecan nuances

Trade name

Filbertone (Symrise).

5-METHYL-2-HEPTEN-4-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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5-METHYL-2-HEPTEN-4-ONE Suppliers

China 83 France 1 Germany 4 India 1 Switzerland 1 United Kingdom 4 United States 34 USA 1 Global 129
Meryer (Shanghai) Chemical Technology Co., Ltd.
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View Lastest Price from 5-METHYL-2-HEPTEN-4-ONE manufacturers

Henan Fengda Chemical Co., Ltd
Product
5-METHYL-2-HEPTEN-4-ONE 81925-81-7
Price
US $36.00-1.20/kg
Min. Order
1kg
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-04-16
Zhuozhou Wenxi import and Export Co., Ltd
Product
5-METHYL-2-HEPTEN-4-ONE 81925-81-7
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-10
Career Henan Chemical Co
Product
5-METHYL-2-HEPTEN-4-ONE 81925-81-7
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
1000KGS
Release date
2019-12-20

81925-81-7, 5-METHYL-2-HEPTEN-4-ONERelated Search:

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  • 2-hepten-4-one,5-methyl-
  • 5-methyl-2-hepten-4-on
  • 5-METHYL-2-HEPTEN-4-ONE 98% PREDOMINAN
  • 5-Methyl-2-hepten-4-one,99%
  • 5-METHYL-2-HEPT-4-ONE
  • 5-METHYL-2-HEPTEN-4-ONE IN 10% IN ETHANOL
  • 5-METHYL-2-HEPTEN-4-ONE NATURAL 10% IN ETHANOL
  • FILBERTONE
  • FEMA 3761
  • 5-METHYL-2-HEPTEN-4-ONE
  • Hazelnut ketone
  • 5-Methylhept-2-en-4-one
  • 5-Methyl-2-hepten-4-one, predoMinantly trans, 99%
  • 5-Methyl-2-hepten-4-one, predominantly <I>trans</I>
  • 5-Methyl-2-hepten-4-one solution
  • filbert heptenone
  • Natural 5-Methyl-2-hepten-4-one
  • 81925-81-7
  • C2H5CHCH3COCHCHCH3
  • Alphabetical Listings
  • Flavors and Fragrances
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