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

cyclotene hydrate
methyl cyclopentenolone hydrate

Sponsors

Fragrance Demo Formulas
Name:2-hydroxy-3-methylcyclopent-2-en-1-one
CAS Number: 80-71-7Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:201-303-2
FDA UNII:627E92X64B
Nikkaji Web:J10.510D
Beilstein Number:2039308
CoE Number:758
XlogP3-AA:0.30 (est)
Molecular Weight:112.12816000
Formula:C6 H8 O2
NMR Predictor:Predict (works with chrome or firefox)
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:418 methylcyclo- pentenolone
FLAVIS Number:07.056 (Old)
DG SANTE Food Flavourings:07.056 3-methylcyclopentan-1,2-dione hydrate
FEMA Number:2700 methyl cyclopentenolone hydrate
FDA:No longer provide for the use of these seven synthetic flavoring substances
 
Physical Properties:
Appearance:colorless to pale yellow solid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Melting Point: 104.00 to 108.00 °C. @ 760.00 mm Hg
Boiling Point: 200.00 °C. @ 760.00 mm Hg
Vapor Pressure:0.005000 mm/Hg @ 25.00 °C. (est)
Flash Point:> 200.00 °F. TCC ( > 93.33 °C. )
logP (o/w): -0.430 (est)
Soluble in:
 alcohol
 water, slightly
 water, 8501 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
caramellic maple
Odor Description:at 1.00 % in dipropylene glycol. caramel maple syrup
Flavor Type: caramellic
caramellic maple
Taste Description: caramellic
Odor and/or flavor descriptions from others (if found).
 
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: perfuming agents
 
Suppliers:
Advanced Biotech
CYCLOTENE HYDRATE NATURAL
99% min.
Odor: Licorice, nutty
Anhui Haibei
Cyclotene natural
Anhui Haibei
Methyl cyclopentenolone
Anhui Jinghe
Methyl Cyclopentenolone
Astral Extracts
Corylone
Axxence Aromatic
MAPLE LACTONE (HYDROUS), Natural, Kosher
Sustainability
BOC Sciences
For experimental / research use only.
2-hydroxy-3-methylcyclopent-2-enone 95%
EMD Millipore
For experimental / research use only.
2-Hydroxy-3-methyl-2-cyclopentene-1-one
Ernesto Ventós
METHYL CYCLOPENTENOLONE NATURAL HYDRATE
Odor: CARAMEL,SWEET,MAPLE,LICORICE,NUTTY
Excellentia International
Maple Lactone (Methyl Cyclopentenolone) Natural
Inoue Perfumery
CYCLOTENE
Jiangyin Healthway
Methyl Cyclopentenolone Natural98%
New functional food ingredients
Lluch Essence
METHYL CYCLOPENTENOLONE HYDROUS NAT.
Odor: FRUITY, SWEET
M&U International
METHYL CYCLOPENTENOLINE, Kosher
M&U International
NAT.MCP, Kosher
Natural Advantage
Methylcyclopentenolone Nat (MCP Nat)
Pearlchem Corporation
Methyl Cylopentenolone
Penta International
METHYL CYCLOPENTENOLONE MONOHYDRATE NATURAL, Kosher
Penta International
METHYL CYCLOPENTENOLONE MONOHYDRATE, Kosher
Sigma-Aldrich
Methyl cyclopentenolone hydrate, natural, 99%, FG
Certified Food Grade Products
Sunaux International
nat.MCP
TCI AMERICA
For experimental / research use only.
2-Hydroxy-3-methyl-2-cyclopentenone >98.0%(T)
 
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 22 - Harmful if swallowed.
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:
oral-guinea pig LD50 1400 mg/kg

oral-guinea pig LD50 1400 mg/kg
Food and Cosmetics Toxicology. Vol. 14, Pg. 809, 1976.

intraperitoneal-mouse LDLo 500 mg/kg
Food and Cosmetics Toxicology. Vol. 14, Pg. 809, 1976.

intraperitoneal-rat LDLo 500 mg/kg
Food and Cosmetics Toxicology. Vol. 14, Pg. 809, 1976.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
 
Safety in Use Information:
Category: flavor and fragrance agents
Recommendation for cyclotene hydrate usage levels up to:
  0.0500 % in the fragrance concentrate.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 570.00 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA): 710.00 (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: 3
 average usual ppmaverage maximum ppm
baked goods: -13.00000
beverages(nonalcoholic): -11.00000
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: 8.0000015.00000
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: -5.60000
fruit ices: -5.60000
gelatins / puddings: -14.00000
granulated sugar: --
gravies: --
hard candy: -18.00000
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: --
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: --
sugar substitutes: --
sweet sauces: --
 
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 83, Revision 1 (FGE.83Rev1): Consideration of ethyl maltol and two 6-keto-1,4-dioxane derivatives substances evaluated by JECFA (65th meeting)
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
Chemical Carcinogenesis Research Information System:Search
Toxicology Citations:Search
EPA GENetic TOXicology:Search
Env. Mutagen Info. Center:Search
NLM Developmental and Reproductive Toxicity:Search
EPA Substance Registry Services (TSCA):80-71-7
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :6660
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
2-hydroxy-3-methylcyclopent-2-en-1-one
Chemidplus:0000080717
RTECS:GY7298000 for cas# 80-71-7
 
References:
 2-hydroxy-3-methylcyclopent-2-en-1-one
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:80-71-7
Pubchem (cid):6660
Pubchem (sid):134972329
 
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
HMDB (The Human Metabolome Database):Search
YMDB (Yeast Metabolome Database):YMDB01663
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View
 
Potential Blenders and core components note
For Odor
acidic
cyclohexyl acetic acid
FL/FR
amber
ambroxan
FL/FR
balsamic
2-
acetyl furan
FL/FR
benzyl salicylate
FL/FR
fir balsam absolute
FR
3-
phenyl propyl alcohol
FL/FR
berry
raspberry ketone
FL/FR
bready
coffee furanone
FL/FR
buttery
acetoin
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
alpha,alpha-
dimethyl anisyl acetone
FL/FR
ethyl 2-hydroxy-2-methyl butyrate
FL/FR
ethyl cyclopentenolone
FL/FR
ethyl furaneol
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 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
strawberry furanone solution
FL/FR
toffee furanone
FL/FR
chocolate
2,4,5-
trimethyl thiazole
FL/FR
citrus
blood
orange oil italy
FL/FR
coconut
gamma-
heptalactone
FL/FR
gamma-
octalactone
FL/FR
coumarinic
tonka bean resinoid
FR
creamy
gamma-
butyrolactone
FL/FR
ethereal
ethyl 4-pentenoate
FL/FR
ethyl pyruvate
FL/FR
iso
valeraldehyde propylene glycol acetal
FL/FR
fermented
ethyl (E)-2-crotonate
FL/FR
floral
ethyl phenyl acetate
FL/FR
floral pyranol
FR
heliotropin
FL/FR
heliotropyl acetone
FL/FR
alpha-
hexyl cinnamaldehyde
FL/FR
methyl dihydrojasmonate
FL/FR
mimosa absolute france
FL/FR
nerolidol
FL/FR
ocean propanal
FL/FR
fruity
beta-
damascone
FL/FR
gamma-
decalactone
FL/FR
(E)-
ethyl tiglate
FL/FR
osmanthus flower absolute
FL/FR
tetrahydrofurfuryl acetate
FL/FR
gamma-
undecalactone (aldehyde C-14 (so-called))
FL/FR
green
iso
amyl 3-(2-furan) propionate
FL/FR
methyl octine carbonate
FL/FR
(E,Z)-2,6-
nonadien-1-ol
FL/FR
violet leaf absolute
FL/FR
hay
beeswax absolute
FL/FR
herbal
butyl levulinate
FL/FR
3-
propylidene phthalide
FL/FR
honey
methyl phenyl acetate
FL/FR
melon
melon heptenal
FL/FR
(Z)-6-
nonenal
FL/FR
moldy
strawberry furanone methyl ether
FL/FR
mossy
veramoss (IFF)
FR
musty
3-
acetyl-2,5-dimethyl furan
FL/FR
naphthyl
beta-
naphthyl ethyl ether
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
popcorn
2-
acetyl pyrazine
FL/FR
2-
acetyl pyridine
FL/FR
powdery
para-
anisyl acetate
FL/FR
roasted
fenugreek resinoid
FL/FR
spicy
cassia bark oil china
FL/FR
black
currant bud absolute
FL/FR
iso
eugenyl acetate
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
vanillin
FL/FR
vanillyl isobutyrate
FL/FR
vegetable
tetrahydrofurfuryl alcohol
FL/FR
woody
santall
FR
For Flavor
No flavor group found for these
2-
acetyl-3,4,5,6-tetrahydropyridine
FL
allyl 2-furoate
FL
benzyl disulfide
FL
1,2-
cyclohexane dione
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
5-
ethyl-2,3,4,5-tetramethyl-2-cyclohexen-1-one
FL/FR
furfuryl acetone
FL
2-
hydroxy-3,4,5-trimethyl-2-cyclopenten-1-one
FL/FR
mango furanone
FL
menthone lactone
FL/FR
osmanthus flower absolute
FL/FR
rosefuran
FL/FR
iso
amyl 3-(2-furan) propionate
FL/FR
beta-
damascone
FL/FR
acidic
acidic
levulinic acid
FL/FR
apple
(E,Z)-2,6-
nonadien-1-ol
FL/FR
balsamic
benzyl salicylate
FL/FR
berry
heliotropyl acetone
FL/FR
raspberry ketone
FL/FR
brown
beeswax absolute
FL/FR
2-oxo
butyric acid
FL/FR
fenugreek oleoresin
FL/FR
5-
methyl furfural
FL/FR
tetrahydrofurfuryl acetate
FL/FR
burnt
furfuryl alcohol
FL
buttery
butter maple flavor
FL
diacetyl
FL
3,4-
hexane dione
FL/FR
caramellic
caramel furanone
FL
caramel furanone solution
FL/FR
caramel pentadione
FL/FR
cyclotene
FL/FR
ethyl furaneol
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
honey maple flavor
FL
lucuma flavor
FL
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
strawberry furanone solution
FL/FR
toffee furanone
FL/FR
cherry
heliotropin
FL/FR
citrus
blood
orange oil italy
FL/FR
coffee
coffee dione
FL/FR
2-
thiophene thiol
FL
corn
2-
acetyl pyridine
FL/FR
2-
acetyl-2-thiazoline
FL
creamy
acetoin
FL/FR
gamma-
undecalactone (aldehyde C-14 (so-called))
FL/FR
fatty
2,4-
undecadienal
FL
(E,E)-2,4-
undecadienal
FL
floral
methyl dihydrojasmonate
FL/FR
methyl phenyl acetate
FL/FR
ocean propanal
FL/FR
fruity
para-
anisyl acetate
FL/FR
gamma-
decalactone
FL/FR
(E)-
ethyl tiglate
FL/FR
furfuryl valerate
FL
2-
pentanoyl furan
FL
iso
valeraldehyde propylene glycol acetal
FL/FR
green
immortelle absolute
FL/FR
melon heptenal
FL/FR
methyl octine carbonate
FL/FR
nerolidol
FL/FR
(Z)-6-
nonenal
FL/FR
3-
propylidene phthalide
FL/FR
violet leaf absolute
FL/FR
herbal
butyl levulinate
FL/FR
5-
hydroxymethyl furfural
FL
honey
ethyl phenyl acetate
FL/FR
jammy
ethyl cyclopentenolone
FL/FR
lactonic
gamma-
heptalactone
FL/FR
gamma-
octalactone
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
coffee furanone
FL/FR
2,3-
dimethyl pyrazine
FL/FR
nutty cyclohexenone
FL/FR
peanut oxazole
FL
tetrahydrofurfuryl alcohol
FL/FR
2,4,5-
trimethyl thiazole
FL/FR
phenolic
4-
methyl-2,6-dimethoxyphenol
FL/FR
powdery
beta-
naphthyl ethyl ether
FL/FR
roasted
2-
acetyl pyrazine
FL/FR
rummy
ethyl pyruvate
FL/FR
spicy
cassia bark oil china
FL/FR
black
currant bud absolute
FL/FR
iso
eugenyl acetate
FL/FR
3-
phenyl propyl alcohol
FL/FR
sweet
caramel dione
FL
cyclohexyl acetic acid
FL/FR
molasses flavor
FL
vanilla oleoresin bali
FL/FR
toasted
acetyl propionyl
FL/FR
vanilla
ethyl vanillin
FL/FR
vanillin
FL/FR
vanillyl isobutyrate
FL/FR
waxy
furfuryl octanoate
FL
alpha-
hexyl cinnamaldehyde
FL/FR
mimosa absolute france
FL/FR
woody
ambroxan
FL/FR
 
Potential Uses:
FRallspice
FRbanana
FRbay rum
FRblackberry
FLbutter rum
FRbutterscotch
FLcaramel
FRcinnamon
FRcoconut
FRcoffee
FRcotton candy
FRcranberry
FL/FRfenugreek
FRfig
 fir
FRfir balsam
FRgingerbread
FRhoneysuckle
FRmango
FRmaple
FRmelon
FRmulberry
FRmusk
FLnut
FRpapaya
FRpassion fruit
FRpeach
FRpina colada
FRpineapple
FRpomegranate
FRpumpkin pie
FLsugar brown sugar
FRtobacco
FRtoffee
FRtonka bean
FRvanilla
 
Occurrence (nature, food, other):note
 wood smoke
Search Picture
 
Synonyms:
 corylone
 cyclotene hydrate
nat.cyclotene hydrate
 cyclotene hydrate natural
2-hydroxy-1-methyl cyclopenten-3-one hydrate
2-hydroxy-3-methyl cyclopent-2-en-1-one hydrate
2-hydroxy-3-methyl cyclopent-2-enone hydrate
2-hydroxy-3-methyl-2-cyclopenten-1-one hydrate
2-hydroxy-3-methylcyclopent-2-en-1-one
 maple lactone (hydrous)
 maple lactone hydrate
nat.MCP
3-methyl cyclopentan-1,2-dione hydrate
3-methyl cyclopentane-1,2-dione hydrate
 methyl cyclopentenolone hydrate
 methyl cyclopentenolone monohydrate
 methyl cyclopentenolone monohydrate natural
3-methyl-2-cyclopentene-2-olone hydrate
 methylcyclo- pentenolone
3-methylcyclopentan-1,2-dione hydrate
 
 
Notes:
product of sugar degradation.
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