EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes
 

ethyl cyclopentenolone
ethylcyclopentenolone

Sponsors

Flavor Demo Formulas
Name:3-ethyl-2-hydroxycyclopent-2-en-1-one
CAS Number: 21835-01-8Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:244-606-5
FDA UNII:XH8EA788C9
Nikkaji Web:J225.452B
MDL:MFCD00012391
CoE Number:759
XlogP3-AA:0.70 (est)
Molecular Weight:126.15510000
Formula:C7 H10 O2
NMR Predictor:Predict (works with chrome or firefox)
EFSA/JECFA Comments:
At least 90%; secondary component 5-10% 3-ethylcyclopentan-1,2-dione (enolic form). (JECFA)
Category:flavor and fragrance agents
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist:Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
PubMed:Search
NCBI:Search
JECFA Food Flavoring:419 ethylcyclo-pentenolone
FLAVIS Number:07.057 (Old)
DG SANTE Food Flavourings:07.057 3-ethylcyclopentan-1,2-dione
FEMA Number:3152 ethylcyclopentenolone
FDA:No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm: 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE
 
Physical Properties:
Appearance:pale brown powder (est)
Assay: 90.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity:1.06700 @ 25.00 °C.
Refractive Index:1.47600 @ 20.00 °C.
Melting Point: 36.00 to 43.00 °C. @ 760.00 mm Hg
Boiling Point: 78.00 to 80.00 °C. @ 4.00 mm Hg
Boiling Point: 65.00 to 68.00 °C. @ 1.00 mm Hg
Vapor Pressure:0.002000 mm/Hg @ 25.00 °C. (est)
Flash Point: 212.00 °F. TCC ( 100.00 °C. )
logP (o/w): 0.080 (est)
Shelf Life: 12.00 month(s) or longer if stored properly.
Storage:refrigerate in tightly sealed containers.
Soluble in:
 alcohol
 water, 2878 mg/L @ 25 °C (est)
Insoluble in:
 water
 
Organoleptic Properties:
Odor Type: caramellic
Odor Strength:high ,
recommend smelling in a 1.00 % solution or less
Substantivity:92 hour(s) at 20.00 % in dipropylene glycol
sweet caramellic maple fenugreek
Odor Description:at 1.00 % in propylene glycol. sweet caramel maple fenugreek
Luebke, William tgsc, (1996)
Odor sample from: Pure Synthetics, Inc.
sweet brown caramellic maple sugar brown sugar rummy whiskey
Odor Description:at 0.50 %. Sweet, brown, caramellic, maple, brown sugar, rum, whiskey, furanone
Mosciano, Gerard P&F 23, No. 5, 49, (1998)
Flavor Type: jammy
sweet jammy fruity brown toasted maple nutty
Taste Description: at 12.00 ppm. Sweet, jammy, fruity, brown, toasted, maple, nutty
Mosciano, Gerard P&F 23, No. 5, 49, (1998)
Odor and/or flavor descriptions from others (if found).
Firmenich
ECP Powder min. 97%, Kosher
Taste Description:Powerful caramelic, walnut, coffee and toasted bread notes
ECP POWDER adds caramel, walnut, coffee, toasted bread profile along with interesting warm effects to coffee, vanilla, chocolate, nut, meat and red fruit flavors.
 
Cosmetic Information:
None found
 
Suppliers:
Anhui Haibei
Ethyl Cyclopentenolone
Odor: Sweet caramel maple rum whiskey
Aromiens International
Ethyl Cyclopentenolone
Beijing Lys Chemicals
Ethyl cyclopentenolone
BOC Sciences
For experimental / research use only.
3-Ethyl-2-hydroxy-2-cyclopenten-1-one
DeLong Chemicals America
3-Ethyl-2-hydroxy-2-cyclopenten-1-one
Diffusions Aromatiques
ECP 50%
Diffusions Aromatiques
ECP PUR
Ernesto Ventós
ETHYL CYCLOPENTENOLONE 50% PG
Odor: MAPLE, CARAMEL, COFFEE, SMOKE
Ernesto Ventós
ETHYL CYCLOPENTENOLONE
Odor: MAPLE, CARAMEL, COFFEE, SMOKE
Firmenich
ECP 50% PG
58 62%, Kosher, Halal
Flavor: Powerful caramelic, walnut, coffee and toasted bread notes
ECP 50% PG adds caramel, walnut, coffee, toasted bread profile along with interesting warm effects to coffee, vanilla, chocolate, nut, meat and red fruit flavors.
Firmenich
ECP Powder
min. 97%, Kosher
Flavor: Powerful caramelic, walnut, coffee and toasted bread notes
ECP POWDER adds caramel, walnut, coffee, toasted bread profile along with interesting warm effects to coffee, vanilla, chocolate, nut, meat and red fruit flavors.
H. Interdonati, Inc.
Ethyl cyclopentenolone 50% in PG Natural, Kosher
Featured Products
H. Interdonati, Inc.
Ethyl cyclopentenolone 99% in PG Natural, Kosher
Indukern F&F
ETHYL CYCLOPENTENOLONE
Odor: MAPLE, CARAMEL, COFFEE, SMOKE
Jiangyin Healthway
3-Ethyl-2-hydroxy-2-cyclopentenone
New functional food ingredients
Jiangyin Healthway
Ethyl Cyclopentenolone Natural97%
Jiangyin Healthway
Ethyl Cyclopentenolone
Kunshan Sainty
Ethyl Cyclopentenolone, Natural
M&U International
ETHYL CYCLOPENTENOLONE, Kosher
Moellhausen
ETHYL CYCLOPENTENOLONE (50%PG)
Moellhausen
ETHYL CYCLOPENTENOLONE (50%PG)
Moellhausen
ETHYL CYCLOPENTENOLONE
Odor: sweet, slightly phenolic
Flavor: tostata, caramel, smoke
Penta International
ETHYL CYCLOPENTENOLONE IN 50% P.G., Kosher
Penta International
ETHYL CYCLOPENTENOLONE PURE, Kosher
Santa Cruz Biotechnology
For experimental / research use only.
3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution
Sigma-Aldrich
3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution, 50wt. % in propylene glycol, FG
Odor: butterscotch; maple; smoky
Certified Food Grade Products
Sigma-Aldrich
Ethylcyclopentenolone, natural, 97%, FG
Sunaux International
Ethyl Cyclopentenolone
Synerzine
3-Ethyl-2-hydroxy-2-cyclopenten-1-one
TCI AMERICA
For experimental / research use only.
3-Ethyl-2-hydroxy-2-cyclopenten-1-one >97.0%(GC)
Treatt
Ethyl Cyclo Pentenolene 50% In PG
Vigon International
Ethyl Cyclopentenolone 50% in PG
Odor: MAPLE, CARAMEL, COFFEE, SMOKE LIKE
 
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 20/21 - Harmful by inhalation and in contact with skin.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
 
Hazards identification
 
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
 
Pictogram
 
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
 
Safety in Use Information:
Category: flavor and fragrance agents
Recommendation for ethyl cyclopentenolone usage levels up to:
  0.3000 % in the fragrance concentrate.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 32.00 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA): 23.00 (μg/capita/day)
Structure Class: II
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 4. Update in publication number(s): 12
 average usual ppmaverage maximum ppm
baked goods: -150.00000
beverages(nonalcoholic): -20.00000
beverages(alcoholic): -20.00000
breakfast cereal: -150.00000
cheese: -10.00000
chewing gum: -50.00000
condiments / relishes: -10.00000
confectionery froastings: -150.00000
egg products: --
fats / oils: --
fish products: --
frozen dairy: -200.00000
fruit ices: -10.00000
gelatins / puddings: -10.00000
granulated sugar: --
gravies: -10.00000
hard candy: -200.00000
imitation dairy: --
instant coffee / tea: --
jams / jellies: -50.00000
meat products: -10.00000
milk products: -50.00000
nut products: -100.00000
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: -150.00000
soups: -10.00000
sugar substitutes: --
sweet sauces: -200.00000
 
Safety References:
European Food Safety Athority(efsa):Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...

European Food Safety Authority (EFSA) reference(s):

Flavouring Group Evaluation 213: alpha,beta-Unsaturated alicyclic ketones and precursors from chemical subgroup 2.7 of FGE.19
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 213, Revision 2 (FGE.213Rev2): Consideration of genotoxic potential for a,-unsaturated alicyclic ketones and precursors from chemical subgroup 2.7 of FGE.19
View page or View pdf

Safety and efficacy of secondary aliphatic saturated or unsaturated alcohols, ketones, ketals and esters with a second secondary or tertiary oxygenated functional group belonging to chemical group 10 when used as flavourings for all animal species
View page or View pdf

EPI System: View
EPA GENetic TOXicology:Search
Env. Mutagen Info. Center:Search
EPA Substance Registry Services (TSCA):21835-01-8
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :62752
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
3-ethyl-2-hydroxycyclopent-2-en-1-one
Chemidplus:0021835018
 
References:
 3-ethyl-2-hydroxycyclopent-2-en-1-one
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:21835-01-8
Pubchem (cid):62752
Pubchem (sid):135019318
 
Other Information:
(IUPAC):Atomic Weights of the Elements 2009
(IUPAC):Atomic Weights of the Elements 2009 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Everything Added to Food in the United States (EAFUS):View
HMDB (The Human Metabolome Database):HMDB31223
FooDB:FDB003247
Export Tariff Code:2914.49.5000
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View
 
Potential Blenders and core components note
For Odor
No odor group found for these
butyl decanoate
FL/FR
acidic
acidic
cyclohexyl acetic acid
FL/FR
balsamic
2-
acetyl furan
FL/FR
iso
amyl pyruvate
FL/FR
berry
raspberry ketone
FL/FR
raspberry ketone acetate
FL/FR
burnt
rum ether
FL/FR
buttery
acetoin
FL/FR
acetyl butyryl
FL/FR
acetyl propionyl
FL/FR
3,4-
hexane dione
FL/FR
caramellic
2-oxo
butyric acid
FL/FR
caramel furanone solution
FL/FR
caramel pentadione
FL/FR
coffee dione
FL/FR
cyclotene
FL/FR
cyclotene hydrate
FL/FR
alpha,alpha-
dimethyl anisyl acetone
FL/FR
ethyl 2-hydroxy-2-methyl butyrate
FL/FR
ethyl maltol
FL/FR
5-
ethyl-2,3,4,5-tetramethyl-2-cyclohexen-1-one
FL/FR
fenugreek absolute
FL/FR
fenugreek oleoresin
FL/FR
geranyl crotonate
FR
immortelle absolute
FL/FR
levulinic acid
FL/FR
maltol
FL/FR
maltyl isobutyrate
FL/FR
maltyl propionate
FL/FR
maple furanone
FL/FR
menthone lactone
FL/FR
mesitene lactone
FR
5-
methyl furfural
FL/FR
rosefuran
FL/FR
shoyu furanone
FL/FR
strawberry furanone
FL/FR
strawberry furanone acetate
FL/FR
toffee furanone
FL/FR
coconut
gamma-
heptalactone
FL/FR
coumarinic
tonka bean resinoid
FR
creamy
gamma-
butyrolactone
FL/FR
ethereal
decyl propionate
FL/FR
ethyl 4-pentenoate
FL/FR
ethyl acetate
FL/FR
ethyl pyruvate
FL/FR
1-
hexen-3-ol
FL/FR
(E)-
methyl tiglate
FL/FR
propyl formate
FL/FR
iso
valeraldehyde propylene glycol acetal
FL/FR
fermented
ethyl (E)-2-crotonate
FL/FR
floral
ethyl hydrocinnamate
FL/FR
beta-
ionyl acetate
FL/FR
linalyl propionate
FL/FR
bitter
orangeflower absolute morocco
FL/FR
fruity
allyl hexanoate
FL/FR
artemisia pallens herb oil
FL/FR
berry pentadienoate
FL/FR
iso
butyl butyrate
FL/FR
butyl formate
FL/FR
cyclohexanone diethyl acetal
FL/FR
davana oil CO2 extract
FL/FR
ethyl heptanoate
FL/FR
ethyl propionate
FL/FR
(E)-
ethyl tiglate
FL/FR
trans-1-
ethyl-2-methyl propyl 2-butenoate
FL/FR
fruity carboxylate
FR
3-
hexanone
FL/FR
methyl propionate
FL/FR
2-
methyl-2-pentenal
FL/FR
2-
phenyl propyl butyrate
FL/FR
prenyl formate
FL/FR
tetrahydrofurfuryl acetate
FL/FR
green
iso
amyl 3-(2-furan) propionate
FL/FR
heptyl acetate
FL/FR
(E)-2-
hexen-1-yl formate
FL/FR
(E)-2-
hexen-1-yl phenyl acetate
FL/FR
herbal
butyl levulinate
FL/FR
3-
propylidene phthalide
FL/FR
honey
allyl phenyl acetate
FL/FR
jammy
ethyl 2-methyl-2-pentenoate
FR
moldy
strawberry furanone methyl ether
FL/FR
musty
3-
acetyl-2,5-dimethyl furan
FL/FR
nutty
2-
acetyl-3,5(or 6)-dimethyl pyrazine
FL/FR
1,2-
cyclohexane dione
FL/FR
2,3-
dimethyl pyrazine
FL/FR
nutty cyclohexenone
FL/FR
phenolic
4-
methyl-2,6-dimethoxyphenol
FL/FR
roasted
fenugreek resinoid
FL/FR
spicy
(E)-
tiglic acid
FL/FR
sweet
2-
hydroxy-3,4,5-trimethyl-2-cyclopenten-1-one
FL/FR
vanilla oleoresin bali
FL/FR
tonka
tonka bean absolute
FR
vanilla
ethyl vanillin
FL/FR
vanillyl isobutyrate
FL/FR
vegetable
tetrahydrofurfuryl alcohol
FL/FR
waxy
ethyl nonanoate
FL/FR
For Flavor
No flavor group found for these
2-
acetyl-3,4,5,6-tetrahydropyridine
FL
allyl 2-furoate
FL
iso
amyl pyruvate
FL/FR
benzyl disulfide
FL
butyl decanoate
FL/FR
butyl formate
FL/FR
1,2-
cyclohexane dione
FL/FR
cyclohexanone diethyl acetal
FL/FR
decyl propionate
FL/FR
2,5-
diethyl tetrahydrofuran
FL
alpha,alpha-
dimethyl anisyl acetone
FL/FR
ethyl 2-hydroxy-2-methyl butyrate
FL/FR
ethyl 4-pentenoate
FL/FR
ethyl hydrocinnamate
FL/FR
trans-1-
ethyl-2-methyl propyl 2-butenoate
FL/FR
5-
ethyl-2,3,4,5-tetramethyl-2-cyclohexen-1-one
FL/FR
furfuryl acetone
FL
(E)-2-
hexen-1-yl phenyl acetate
FL/FR
2-
hydroxy-3,4,5-trimethyl-2-cyclopenten-1-one
FL/FR
mango furanone
FL
menthone lactone
FL/FR
(E)-
methyl tiglate
FL/FR
prenyl formate
FL/FR
rosefuran
FL/FR
iso
amyl 3-(2-furan) propionate
FL/FR
acidic
acidic
levulinic acid
FL/FR
berry
raspberry ketone
FL/FR
raspberry ketone acetate
FL/FR
brown
2-oxo
butyric acid
FL/FR
fenugreek oleoresin
FL/FR
5-
methyl furfural
FL/FR
tetrahydrofurfuryl acetate
FL/FR
(E)-
tiglic acid
FL/FR
burnt
furfuryl alcohol
FL
rum ether
FL/FR
buttery
diacetyl
FL
3,4-
hexane dione
FL/FR
caramellic
caramel furanone
FL
caramel furanone solution
FL/FR
caramel pentadione
FL/FR
cyclotene
FL/FR
cyclotene hydrate
FL/FR
ethyl maltol
FL/FR
5-
ethyl-3,4,5,6-tetramethyl cyclohexen-2-one
FL
fenugreek absolute
FL/FR
fenugreek resinoid
FL/FR
maltol
FL/FR
maltyl propionate
FL/FR
maple furanone
FL/FR
3-
methyl butyl 2-furyl butyrate
FL
pyruvaldehyde
FL
shoyu furanone
FL/FR
strawberry furanone
FL/FR
strawberry furanone acetate
FL/FR
toffee furanone
FL/FR
coffee
coffee dione
FL/FR
2-
thiophene thiol
FL
creamy
acetoin
FL/FR
acetyl butyryl
FL/FR
earthy
1-
hexen-3-yl acetate
FL
ethereal
ethyl acetate
FL/FR
fatty
2,4-
undecadienal
FL
(E,E)-2,4-
undecadienal
FL
floral
bitter
orangeflower absolute morocco
FL/FR
fruity
allyl hexanoate
FL/FR
artemisia pallens herb oil
FL/FR
berry pentadienoate
FL/FR
iso
butyl butyrate
FL/FR
davana oil CO2 extract
FL/FR
ethyl heptanoate
FL/FR
ethyl propionate
FL/FR
(E)-
ethyl tiglate
FL/FR
furfuryl valerate
FL
3-
hexanone
FL/FR
methyl propionate
FL/FR
2-
methyl-2-pentenal
FL/FR
2-
pentanoyl furan
FL
propyl formate
FL/FR
tamarindus indica extract
FL
iso
valeraldehyde propylene glycol acetal
FL/FR
green
heptyl acetate
FL/FR
1-
hexen-3-ol
FL/FR
immortelle absolute
FL/FR
3-
propylidene phthalide
FL/FR
herbal
butyl levulinate
FL/FR
5-
hydroxymethyl furfural
FL
linalyl propionate
FL/FR
marrubium vulgare extract
FL
honey
allyl phenyl acetate
FL/FR
jammy
maltyl isobutyrate
FL/FR
lactonic
gamma-
heptalactone
FL/FR
milky
gamma-
butyrolactone
FL/FR
moldy
strawberry furanone methyl ether
FL/FR
musty
ethyl (E)-2-crotonate
FL/FR
nutty
2-
acetyl furan
FL/FR
3-
acetyl-2,5-dimethyl furan
FL/FR
2-
acetyl-3,5(or 6)-dimethyl pyrazine
FL/FR
2,3-
dimethyl pyrazine
FL/FR
nutty cyclohexenone
FL/FR
peanut oxazole
FL
tetrahydrofurfuryl alcohol
FL/FR
phenolic
4-
methyl-2,6-dimethoxyphenol
FL/FR
rummy
ethyl pyruvate
FL/FR
(E)-2-
hexen-1-yl formate
FL/FR
spicy
2-
phenyl propyl butyrate
FL/FR
sweet
caramel dione
FL
cyclohexyl acetic acid
FL/FR
vanilla oleoresin bali
FL/FR
toasted
acetyl propionyl
FL/FR
tropical
guava distillates
FL
vanilla
ethyl vanillin
FL/FR
vanillyl isobutyrate
FL/FR
waxy
ethyl nonanoate
FL/FR
furfuryl octanoate
FL
woody
beta-
ionyl acetate
FL/FR
 
Potential Uses:
FLbread
FLcaramel
FRcoconut
FRcoffee
FRcotton candy
 fruit dried fruit
FRmalt
FRmaple
FLmolasses
FLyeast
 
Occurrence (nature, food, other):note
 coffee
Search PMC Picture
 pork
Search PMC Picture
 tobacco
Search Trop Picture
 
Synonyms:
 coffee pentenolone
 cyclopent-2-en-1-one, 3-ethyl-2-hydroxy-
2-cyclopenten-1-one, 3-ethyl-2-hydroxy-
 ECP 50% PG
 ECP powder
 ethyl cyclo pentenolene 50% in PG
3-ethyl cyclopentan-1,2-dione
 ethyl cyclopentenolone 50% PG
 ethyl cyclopentenolone in 50% P.G.
 ethyl cyclopentenolone pure
 ethyl cyclotene
3-ethyl-2-cyclopenten-2-ol-1-one
3-ethyl-2-hydroxy-2-cyc1openten-1-one 50% in P.G.
3-ethyl-2-hydroxy-2-cyclopenten-1-one
3-ethyl-2-hydroxycyclopent-2-en-1-one
 ethylcyclo-pentenolone
3-ethylcyclopentan-1,2-dione
 ethylcyclopentenolone
2-hydroxy-3-ethyl-2-cyclopenten-1-one
2-hydroxy-3-ethyl-2-cyclopentene-1-one
 
 
Notes:
Used as a food additive [EAFUS]
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